STOP trusting the exit receipt check at Costco — you can still get double-charged and walk out like nothing happened.
I’m not being dramatic: this is how people get hit with an extra $40… and I’m going to give you a 10-second receipt check + the one sentence to say at Customer Service + a quick Instacart warning so you don’t get burned again.

Here’s the reality: the door check is mostly a loss-prevention check. It’s not a line-by-line audit of every item and every price.

So yes — you can have a totally “normal” exit… and still have a mistake sitting on your receipt.

The plot twist (the part most people assume wrong)

You think: “They checked my receipt, so I’m good.”
But the door check is usually: quick scan, quick mark, keep the line moving.

That’s why mistakes like double scans can slip through. One shopper even posted a pic of their receipt showing the same coconut water listed twice — two separate charges at $20.

99 each. That’s not a “small oops.” That’s real money.

The “I’ve been there” moment

You know that feeling when you’re trying to get out fast — kids, cart, hot dog thoughts, parking lot chaos — and the receipt checker scribbles a line and you’re like, “Cool, we’re cleared.

The article is not finished. Click on the next page to continue.