2) Plump all the cushions. Really. This will make you feel better tomorrow when you come downstairs in the morning.
4) Clean up your kitchen. I know it seems BACKWARDS to do it before you've brought in any dirty dishes but it's much more pleasant to do dishes in a clean kitchen and clean sink. Wipe down the counters with something that smells like grapefruit. It will make you feel healthy. This is from Williams Sonoma, where I had my first job after college. I got in trouble for not dusting right.