If you open it, close it.
If you drop it, pick it up.
If you empty it, fill it up.
If you make it messy, clean it up.
If you wear it, put it back.
If you borrow it, return it.
+ If you eat it, dose for it (my 2 cents)
Oh, you parents out there -- does this not sum it up so well? And for the rest of you, remember: Your mother doesn't work here, so take care of yourself.