Oh this could be some much needed therapy...!
Rolls dirty socks into a ball and leaves them down the side of the sofa, or on the bed, or on the kitchen work surfaces. Fucking infuriating.
Refuses to put things in the dishwasher as he thinks it is a pointless machine, but then either just leaves dirty stuff on the side, or makes a massive deal of using 10 gallons of hot water to wash a single knife.
Leaves wet towels on the bed.
Leaves muddy running shoes all over the house, with a trail of mud behind them.
As others have said, if we have guests coming in half an hour, he'll decide to reorganise the spice rack, rather than, you know, vacuuming the carpets or cleaning his piss stains off the toilet.
Stirs porridge in his bowl for about it 10 minutes until I want to kill him.
That'll do for now. It feels a bit better already.