I don't think this has been discussed before, but if you haven't checked out http://dailyshoot.com/, its a great place to get a daily theme. I've tried to use their theme in almost all the photos I post each day on 365 project. Some of the themes are pretty fun and provide for a nice challenge as well. I've also learned a bunch about photography and photo "lingo" from participating in the themes. And its nice because each day I receive the theme through text from twitter.
So just thought I would share this website with you all in case you are ever out of themes or need a little challenge.
"Hope it helps with making 365project more 365ish. " -That gave me a (much needed) chuckle, Robert. I'm going to check this out right now. I'm in need of a fire under me. Thanks.
I will sure try it!