Cjmccray, why do 2 grown adults trash the place ? How do they ? I would say if they are untidy, they have to tidy and leave a room as its found. You are not an unpaid skivvy ! I used to have a beautiful home, when my husband was alive, and took great pride in it. 'sigh'
Even when the kids were young and had their toys all out playing, one game/toy was put away before the next came out, rather than a whole toy box tipped out.
I don't think that's harsh, just how I taught the kids to play.
You're not dealing with kids but adults, they should each tidy after themselves. Do they think the elves come and tidy ?
Have you told them how you feel ?