Hidden Gems, Best Deals & Hacks to Save Hundreds This Year
Your no-fluff guide to getting the absolute most out of your membership
If you know me, you know I LOVE Costco. I scream from the mountaintops my favorite Costco meals and snacks that my family loves.
If you’re looking for my favorite Costco meals, you can check those out here! Or, if you’re more of a snack person, my favorite Costco snacks can be found here.
Whether you have a big family or are just an individual person- I promise you’ll benefit from a Costco membership!
With the Costco membership starting at $65 (or $130 for Executive) a year- the real question is: are you actually getting your money’s worth?
Most members leave hundreds of dollars on the table every single year- not because they shop there too little, but because they don’t know the tricks. The price adjustment policy. The secret savings on travel. The items that are genuinely unbeatable deals versus the ones that just look like deals. The Kirkland products that quietly outperform name brands costing twice as much.
This is the guide that fixes all of that. By the end, you’ll shop smarter, waste less, and probably earn back your membership fee before you even hit the food court.
| Who This Guide Is For Whether you’ve been a member for 10 years or just signed up last week, this playbook is packed with tips most people never discover on their own. Bookmark it. Share it. Come back to it before your next Costco run. |
1. Membership Hacks That Pay For Themselves
Your membership isn’t just a ticket to shop in bulk. It comes loaded with perks that most people completely ignore.
The Executive Membership Math
The Executive Membership costs $130/year vs. $65 for Gold Star… a $65 difference. But it pays 2% back on all Costco purchases. If your household spends more than $3,250/year at Costco (about $270/month), the upgrade pays for itself. Heavy shoppers often get the full membership back as a reward check.
| Quick Math Spend $5,000/year at Costco? That’s $100 back as a reward check- which more than covers the $65 upgrade cost. Executive membership is a no-brainer for regular shoppers. |
The Costco Price Adjustment Policy
This is one of Costco’s best-kept secrets. If an item you bought goes on sale within 30 days of your purchase, you can request a price adjustment at the membership desk and get the difference refunded. No questions asked.
- Keep your receipts (or check the Costco app- your purchases are tracked)
- Visit the membership counter, not a checkout lane
- This works on everything! Even big-ticket items like TVs and appliances
The Return Policy Is Genuinely Unlimited (Almost)
Costco has one of the most generous return policies in retail. Most items can be returned at any time for a full refund- no receipt needed, no questions asked. Electronics have a 90-day window. This makes Costco a safe place to try new products and big purchases.
| ⚠️ Important Note The unlimited return policy isn’t a loophole for abuse. Costco tracks return patterns and can close accounts of members who return excessively. Use it for genuine dissatisfaction, not buyer’s remorse on things you’ve used up. |
Costco Travel: The Most Overlooked Member Benefit
Costco Travel is consistently rated among the best travel booking platforms for value. Members report saving hundreds on vacation packages, rental cars, and cruises versus booking directly.
- Rental cars: Costco Travel regularly beats every other booking site on price
- Vacation packages: bundled resort + flight deals often undercut competitors significantly
- Cruises: Costco is one of the largest cruise sellers in the US and negotiates deep discounts
- You don’t have to book from inside the warehouse- it’s all at costcotravel.com
2. The Best Deals You Should Always Buy at Costco
Not everything at Costco is a deal. (We’ll get to the items to skip in a moment.) But these categories are almost always cheaper per unit than anywhere else- and the quality holds up.
Proteins
- 🐔Rotisserie chicken ($4.99)
- 🥩Ground beef is usually significantly cheaper per pound than grocery stores in bulk packs
- 🐟Wild-caught salmon is excellent quality at a price that rivals frozen fish
- 🍗Boneless chicken thighs and breasts- Kirkland quality is consistently high
Pantry Staples
- 🫒Olive oil: Kirkland brand EVOO is cold-pressed and lab-tested to be high quality. A 2L bottle is a bargain.
- 🥜Nuts: almonds, cashews, mixed nuts are dramatically cheaper per oz than grocery stores
- 🥫Canned good: tuna, salmon, beans, tomatoes in bulk at unbeatable per-unit cost
- 🧂Spices: Kirkland spices are restaurant-grade. The vanilla extract alone saves serious money.
Household & Cleaning
- 🧴Kirkland dish soap, laundry detergent, and paper towels are consistently ranked among the best value per use
- 🔋Batteries: Kirkland AA/AAA batteries outperform many name brands in independent tests
- 🗑️Trash bags: Kirkland’s Flex-Tech bags are comparable to Hefty or Glad at half the price
Health & Beauty
- 💊Kirkland Minoxidil (hair regrowth) is same active ingredient as Rogaine at a fraction of the cost
- 💊Vitamins and supplements: Kirkland brand is USP-verified and much cheaper than pharmacy prices
- 👂Hearing aids: Costco is one of the most affordable hearing aid providers in the US
- 👓Contacts and glasses: Costco Optical is consistently cited as one of the best-value eye care options
3. Hidden Gems Most Members Walk Right Past
These are the items that loyal Costco shoppers rave about, but they never seem to get the attention they deserve.
Add these to your list.
| Hidden Gem | Approx. Price | Why It’s Worth It |
| Kirkland Signature Vodka | ~$19.99/1.75L | Widely believed to be made by Grey Goose’s distillery. Blind taste tests back this up. |
| Kirkland Olive Oil | ~$14.99/2L | Third-party tested, cold-pressed, and genuinely high-quality EVOO at a bargain price. |
| Kirkland AA Batteries (48-pack) | ~$16.99 | Independent tests show these last as long as Duracell- at about 35 cents per battery. |
| Almond Flour (3 lbs) | ~$12.99 | Half the price of grocery store almond flour. Essential buy for keto/gluten-free households. |
| Kirkland Bacon (4 lbs) | ~$16.99 | Thick-cut, consistent quality, and significantly cheaper per pound than most grocery stores. |
| Acetaminophen 500-count | ~$9.99 | Same as Tylenol Extra Strength. One bottle lasts a year and saves $30+ vs. pharmacy prices. |
| Kirkland Vanilla Extract (16 oz) | ~$9.99 | Pure vanilla extract at a price that beats every grocery and specialty store significantly. |
| Prednis… (Fish Oil 400-count) | ~$19.99 | Kirkland fish oil is NSF-certified and costs a fraction of branded omega-3 supplements. |
| Everything Bagel Seasoning | ~$5.99/large | Giant tub that lasts forever. Use on eggs, avocado toast, roasted veggies, and anything savory. |
| Organic Coconut Oil (2-pack) | ~$13.99 | Great for cooking and beauty use. Priced better than virtually any other retailer. |
4. What NOT to Buy at Costco
I’m always going to keep it real with you, so in the spirit of being genuinely helpful (not just a hype guide), here are the categories where Costco often isn’t the best deal:
- Fresh produce for small households: unless you’ll use a 5-lb bag of spinach, you’ll throw half of it away. Stick to produce you know you’ll burn through.
- Condiments: a gallon of mayo sounds like a deal until it’s been in your fridge for 18 months. Buy condiments at the regular store unless you use them constantly.
- Bread and bakery items: the portions are enormous and most households can’t finish them before they go stale or moldy. Buy only if you freeze half immediately.
- Spices you rarely use: a massive tub of cumin is only a deal if you use a lot of cumin. Be honest with yourself.
- Electronics without research: Costco has great prices but limited selection. Always price-check on Amazon or Best Buy before buying electronics there.
- Prepared foods you won’t finish: the Costco lasagna feeds 12. The tiramisu feeds 20. Know your household before you commit.
5. In-Store Shopping Hacks That Save Time and Money
Decode the Price Tag
Costco price tags tell you a lot more than just the price — if you know what to look for:
- Prices ending in .99: regular price, in stock indefinitely
- Prices ending in .00 or .88: manager’s special or markdown. Buy it now; it’s being cleared.
- An asterisk (*) in the top right corner: this item is being discontinued. Last chance to stock up.
- Prices ending in .97: often a one-time special buy or seasonal item
Shop the Perimeter Last
Fresh produce, proteins, and refrigerated items are around the edges of the store. Do your dry goods shopping first, then hit the perimeter last — this keeps cold/fresh items at their best and helps you avoid impulse buying on your way to the essentials.
Use the Costco App
- Browse current coupons before you go (Costco coupons are applied automatically- no clipping needed)
- Check your purchase history to track what you’ve bought and when
- Find items in-store using the aisle locator feature
- Access digital membership card so you don’t have to dig for your wallet
Go at the Right Time
- Weekday mornings (especially Tuesday–Thursday) are the least crowded
- Avoid the first and last weekend of the month. Those are typically the busiest shopping days
- 1–2 hours before closing is usually a sweet spot for short lines
- Costco samples are most abundant mid-morning on weekdays
6. How Much Can You Actually Save?
Let’s put some real numbers on this. Here’s a rough estimate of what a savvy Costco member can save annually compared to shopping exclusively at regular grocery and retail stores:
| Category | Annual Savings Est. | How |
| Groceries & pantry staples | $400–$600 | Bulk pricing on proteins, oils, nuts |
| Household & cleaning supplies | $100–$200 | Kirkland vs. name brand |
| Health & pharmacy | $150–$300 | Vitamins, OTC meds, contacts |
| Gas (if available nearby) | $100–$250 | Often 10–20 cents/gallon cheaper |
| Travel bookings | $200–$500 | Rental cars, vacation packages |
| Executive membership 2% reward | $65–$150 | Based on $5k–$7.5k annual spend |
| TOTAL ESTIMATED SAVINGS | $1,015–$2,000+ | Per year for an active member |
The Bottom Line
Your Costco membership is only as valuable as the knowledge you bring to it. The average member pays $65/year and shops on autopilot, picking up the same familiar items without ever discovering the price adjustment trick, the travel savings, the Kirkland gems, or the right time to go.
The savvy member treats that $65 like an investment — and earns back 10x, 20x, sometimes 30x that amount in genuine savings over the course of a year.
Now you know what they know. Go forth and save.
What’s your #1 Costco hack? Drop it in the comments- I’d love to add it to the list! 👇