Not that I have an empty closet, but i do like this."Closet Office" - Turn your un-used closet/reading nook into an office space. Maximize the little space with lots of shelving and storage *LIKE CORNER DESK/nook & shelving for office corner
i do have lots of cork left over. DIY Cork Memo Board: Inexpensive cork transform into a contemporary office bulletin board. Candy-color pushpins organize invitations, hold business cards, and show off interesting ephemera. (Go to bhg for the how-to.