I don't have that many that irate me and I find most of them funny anyway...
If I'm doing something, like sorting washing, he'll stand around like he's going to help but with a little-boy-lost look on his face and unless I pass him something and say this goes there he won't help... the intentions are there though! lol
He claims to not know how to use the washing machine.... it was his washing machine from his house so he SHOULD know how to use it!
If the hallway to all mopped and the shoes all on the rack he'll leave his on the floor because "I'm going out again!"

Doesn't matter whether it's in 5minutes or when he leaves for work tomorrow! lol
OH, and earlier I poured a nice cold glass of coke and left it on the side in the kitchen while I put some washing out and he poured it down the sink because he didn't know how long it had been there for!

He was in the kitchen when I poured it and it was COLD! lol