I have a pet peeve that is beginning to turn into irrational anger.
When I go through a checkout, I want to get through as quickly as possible. I'm ready with my cards, have my bag open, and I put groceries in as they're scanned...all very efficient. I open my wallet to put my cash in and I'm ready to close it up and go every time.
Then the cash comes out, and instead of handing it to me, the clerk waits until the receipt prints, puts the receipt with the cash, and then hands me the mismatched bundle. The receipts are too big to go in my wallet, so I now have to separate the receipt before putting my cash in my wallet. The clerk COULD have given me my cash, let me put my wallet away while the receipt was printing, and then handed it to me and I'd be out of the next person's way. But no, they have to make it take longer b/c now I have to separate the receipt so I can put my money away and then walk away. It makes the whole process take 5 or 10 more seconds, which between thousands of customers each day, adds up to quite a bit. This is NOT efficient.
Seriously. Walgreens does this every single time. Every time. ARGH. Cala does it, too. I actually sometimes have to calm myself down before it happens so I don't get upset.
Ridiculous, I know. But true. God help me.