Over at TheChuppies you'll find a fabulous blog entry, including tons of photos, which show you how to organize with cute wall hangings, decor, clips, containers, etc. A bunch of the ideas are perfect for classrooms, including homeschool. I'm using the list as I remodel our classroom space.
And at RaisingOlives you can find a tutorial for raingutter bookshelves.
I may keep adding to this list as I find more... ;)