Talk to yourself.
Wander through the rooms and touch things. Pet an old teddy bear on the head.
Make note of things that need to be done, now that you suddenly have the chance to SEE things around you without any whirling chattering children filling up your senses.
Read for uninterrupted hours.
Watch a movie that doesn't have any superheroes or superpowers or animation in it.
Lie on the couch and stare out the window.
Get messy with craft stuff at the art table.
Organize a cabinet or a closet. Put things in charity bags.
Play Sword of Fargoal ALL YOU WANT.
Fart around on LJ and FB and all those great blogs ALL YOU WANT.
Work on various PC projects ALL YOU WANT.
Play YOUR music loudly. Sing along. Loudly.
Walk on the treadmill and sing out loud with the headphones on. Loudly.
Revel in the silence.
Think about missing your family, but put it off for a few more days.
What would you do?