Fun-A-Day idea #11:

Write a haiku poem each day.

You remember this from high school, right?  The usual form is 5-7-5 (syllables), but play around!  Think about how you'll present the haiku.  What will you use as prompts each day?  Or perhaps you could introduce a new constraint each day.

Need ideas?  Check out the Haiku Society of America's site.