Take something you really love, a letter, envelope, photograph, a ticket stub. anything - to a printing place like Kinkos and have them blow it up for you to hang as art. An old recipe from my Grandma would be great for the kitchen.
No room for a nightstand beside the bed? Hang shelves on the wall instead. In the room above, wall shelves provide a catch-all for books and other sundries in a super-narrow sleeping space. Design Dozen: 12 Clever Space-Saving Solutions for Small Bedrooms