This is an amazing thread! Thank you for all your ideas!
Wow! I played around a bit there and just uploaded my own version of a lesson planning card. http://www.diyplanner.com/node/8873 I'll probably be printing out one color for each subject for the week...not sure yet how many lessons I'll be able to fit on there, but I just have a Kindergartener so far, so I don't need much. :)
Hopefully some of you can get some use out of it, too. It prints fine on my printer, but let me know if there are any glaring problems & I'll see what I can do.
Edit: Shoot, I just tried my link after logging out of the diyplanner site, and it said access was denied. Maybe there's some kind of review process before it's live? Sorry! Is it possible to attach pdfs in this thread? I'll check back later to see.