1. Get to watch a lot of good TV
2. Read books
3. Write a novel
4. Do research / complete a PhD
5. Invite friends over for drinks / dinner
6. Save money on taxi fares
7. Save money on overpriced / fattening restaurant food
8. Become an artist, catch up on unfinished knitting projects
9. Instant excuse for unwanted invitations
10. Write a blog!