Walk into any Costco on a Saturday and you'll see the same scene: flatbed carts stacked with paper towels, a crowd three deep around the free samples, and at least one person squinting at a price tag trying to figure out whether that's actually a deal.
It usually is — but not for the reason most shoppers think.
The warehouse club doesn't run sales the way normal stores do.
There's no weekly circular full of loss leaders.
Instead, Costco rotates a small number of items through temporary price cuts, and the pattern is more predictable than the company lets on.
Prices ending in .97 are typically store-specific markdowns.
Prices ending in .00 or .88 usually mean the item is on its way out.
None of this is printed on the shelf tag, which is exactly the point.
A tiny star in the upper right corner of a price sign means the item isn't being reordered.
That's when the real discounts show up, often 20 to 50 percent off, because the store needs the pallet gone.
Regular shoppers who learn to scan for it stop paying full price on things they buy every month.
Timing matters more than most people realize.
Costco's fiscal year ends in late August, and the period right before a new fiscal quarter is when buyers clear out inventory to make room.
January is another window, as is the weeks after major holidays when seasonal goods — grills, patio furniture, holiday candy — get slashed hard.
If you've ever wondered why the same air fryer was $40 cheaper in February than in November, that's why.
Markdowns live on the normal shelves, mixed in with full-price items, which means the deals are hiding in plain sight.
Employees won't point them out, and the company has no incentive to make them easy to find.
A $6 discount on a $30 item is real money, but only if you notice it.
Membership math is where the skepticism belongs.
The Gold Star fee runs $65 a year, Executive is $130.
Costco makes most of its profit from those fees, not from the rotisserie chicken.
That's not a scandal — it's just the business model, and it means the company needs you to renew more than it needs you to save.
The deals are real, but they exist to keep you coming back, not out of generosity.
The bigger risk is what behavioral economists call the warehouse effect.
A store designed around bulk sizes and treasure-hunt psychology gets people to buy things they didn't plan on, in quantities they can't use.
A $4 savings on a 48-pack of something you'll throw away is a $20 loss, not a win.
The deal only counts if the item was already on your list.
So the practical move is boring: know your unit prices before you go, check the tag endings, and treat the asterisk as a signal rather than a treasure map.
It's just running a very effective machine, and the machine works best when you're not paying attention.
The uncomfortable truth is that most "insider" Costco tips online are repackaged common sense dressed up as secrets.
The genuinely useful skill isn't memorizing price codes — it's walking out with only what you came for.
Final Thoughts
That's the deal almost nobody brags about.