Keri Smith is an illustrator and author and has a fantastic site. I loved her “100 ideas” list. Here are her first twenty-five:

1. Go for a walk. Draw or list things you find on the the sidewalk. 2. Write a letter to yourself in the future. 3. Buy something inexpensive as a symbol for your need to create, (new pen, a tea cup, journal). Use it everyday. 4. Draw your dinner. 5. Find a piece of poetry you respond to. Rewrite it and glue it into your journal. 6. Glue an envelope into your journal. For one week collect items you find on the street. 7. Expose yourself to a new artist, (go to a gallery, or in a book.) Write about what moves you about it. 8. Find a photo of a person you do not know. Write a brief bio about them. 9. Spend a day drawing only red things. 10. Draw your bike. 11. Make a list of everything you buy in the next week. 12. Make a map of everywhere you went in one day. 13. Draw a map of the creases on your hand, (knuckles, palm) 14. Trace your footsteps with chalk. 15. Record an overheard conversation. 16. Trace the path of the moon in relation to where you live. 17. Go to a paint store. Collect ‘chips’ of all your favorite colors. 18. Draw your favorite tree. 19. Take 15 minutes to eat an orange. 20. Write a haiku. 21. Hang upside down for five minutes. 22. Hang found objects from tree branches. 23. Make a puppet. 24. Create an outdoor room from things you find in nature. 25. Read a book in one day.