For the last couple years, some friends and I have done a month-long photo challenge: take and post a photograph every day for the month of September.
Well, what do you know... September starts tomorrow! Time to dust off our cameras and get going!
If you want to join in, all you have to do is join our Flickr group at
http://www.flickr.com/groups/septemberillremember/. Then just take a picture every day, upload it to Flickr, and add it to the group photostream.
I think it's a fun little project... I approach every day a little differently when I know I have to immortalize some part of it on the internet!