I stayed at home till I was 25 but I always had a job and paid my way from the age of about 19 onwards when I left full time education (17-19 were f***ing great years though!) and used to put dirties in dishwasher, washing in laundry and keep a respectable room (my GF now wife would have gone mad if it had been filthy).
Haven't had to return the favour to my parents but have let the MIL and BIL stay for a few weeks each, so have given some back.
Personally I don't know what I'd do in your situation as they are step kids you obviously don't want to upset your wife, it's easier when they are your own kids for sure. The thing about serving up on dirty plates is a cracker and as far as the room goes let her live in filth but clean the rest of the house, you could also liberate the mamster into the garden when she isn't there and say she must have left the cage open.
Carl.
Haven't had to return the favour to my parents but have let the MIL and BIL stay for a few weeks each, so have given some back.
Personally I don't know what I'd do in your situation as they are step kids you obviously don't want to upset your wife, it's easier when they are your own kids for sure. The thing about serving up on dirty plates is a cracker and as far as the room goes let her live in filth but clean the rest of the house, you could also liberate the mamster into the garden when she isn't there and say she must have left the cage open.
Carl.