I throw all of the junk he collects out when he isn't looking. He stores things in places he doesn't think I'll find them and when I do I go through the same old routine of where did you get it, what do you want it for, why are we keeping it, does it have to be kept there and so on. In our area of London people throw out the most amazing things and even though he has brought back some great stuff, fridge, stereo, tv and so on a lot of the stuff he brings home is just junk. Things like white medical floor tiles, copper piping and so on. He is a hoarder and I'm not so that is probably one of the main things we argue about.
I'm always getting the cleaner in to do my ironing and not telling him.
When I think about it there are loads of things I don't tell him about. There is also the £500 in parking fines I racked up that I haven't told him about but have just paid.