at OhExpletive!
Trouble is, if I did that, I swear he'd return the "favour"!
DH's worst - singing. Loudly, repetitively (usually just a short phrase), the wrong bloody words, or Yabba Dabba (AAAAAAAAARRRRRRRRRGGGGGGGGGGGGGHHHHHHHH!) I try all sorts of approaches, none seem to work. He thinks it sounds great - my pointing out that he should try being my side of it, that he isn't great, that he's going to end up with a knife between his ribs don't work; nor does asking piteously why he hates me, when does he want me to have my breakdown, who would leave the house when we divorce. Telling him to shutup seems to be the most effective but has to be repeated so often that now even DS has started saying it(and he's only 2.6!)
Most other things aren't too much of an issue - the physical things I refuse to do for him, I just threaten that things left out/ on the floor will be thrown away (razors, shaving foam, socks, jumpers) and do put them in the bin for him to retrieve; or I make him come and move them instantly.
In the end, as someone else said, Pick Your Battles - the noise pollution actually scrapes the inside of my skin raw, so that IS my battle - the rest (unless it's dangerous to DS) goes by the board.