Kevin,
Some of my days off:

1. Get all the housework done - this way I don't have to do it while kids are around (except for their chores)
2. Select one project to catch up - i.e. replacing blinds.
3. Play pool with buddies
4. Schedule friends over for the Buckeyes game on Saturday
5. Call my Mom and Dad - make sure my family ties are tight and good.
6. Checked out books from the library - nothing like lying back on the recliner, and getting lost in a good book.
7. Finding interesting topics to study Biblically - the Bible is an amazing source of history, and getting lost in God's word just can't hurt...
8. Talk about feelings with a trusted friend - one who knows my situation, cares for me, and understands me.
9. Signed up S7 for basketball.

Monday - I play basketball with community group on one night off
Tuesday - band practice, or "guy's night out, usually pool, bowling, cards, etc
Wednesday - kids, chores, small group from church
Thursdays - designated cleaning/project day
Friday - kids - movie or pizza or theater, their choice
Saturday - football, kids with friends
Sunday - church, lunch with friends/family

As you can see, I am busy, fulfilled, and happy, and I don't spend much money. I love the "new family" I am building with my kids. We feel like a unit now, just the three of us, and whether W had a good day or week or not doesn't matter.

What is your schedule like? You don't necessarily have to fill EVERY empty gap, again a good book and a recliner is awesome.