My personal list of things to do when bored:
1. Play with your dog.
2. Talk to your dog.
3. Sing to your plants.
4. Paint wooden objects, the floor, or somethin' else.
5. Make a collage.
6. Start a new hobby.
7. Learn to write with your feet.
8. Learn to write w/ your non-dominate hand.
9. Write and send a letter (the paper kind, not electronic) to a friend or relative.
10. Take pictures.
11. Go for a walk.
12. Play on a playground.
13. Swing.
14. Listen to the rain.
15.Play in puddles.
16.Watch a sunset/sunrise.
17. Go for a drive in a picturesque area with the windows down (unless it's really cold out).
18. Take a bubble bath.
19. Blow bubbles.
20. Fingerpaint.
21. People watch.
22. Play with a little kid or kids.
23. Daydream.
24. Color in a coloring book.
25. Go to a bookstore.
26. Read a book.
27. Get together with a friend.
28. Go to a cafe with a friend.
29. Make up a dance to a song.
30. Bake!
31. Write poetry.
32. Create your own webpage.
33. Learn sign language.
34. Make a scrapbook.
35. Go for an adventure.