Here's a pet peeve of mine:
When someone buys a box beer and then puts the whole box, containing the beer, into the fridge. Instead of taking the beers out of the box and placing them individually in the fridge and then placing the empty box somewhere convenient to put the empties in.
Instead - the person will pull one beer out of the box at a time as they drink them and then leave empty bottles scattered around the house. Then when someone else attempts to clean up, there is nowhere to put the empties because the box is still in the fridge holding whatever beers are not yet drank.
The box also takes up a lot of space in the fridge and is ugly.
(And this has always annoyed me, I'm not just being sour because I currently cannot drink beer - although it may have slightly increased the level of annoyance that I feel)