There's no way around it: renters just don't have the freedom to do whatever they want to the space they call home. One frequent deposit money-sucker is holes in the wall. Thankfully, there are some fantastic workarounds, solutions that range from nail alternatives to some downright conversation starters. Check them out.
Command Hanging Strips
These velcro strips are ideal for items that won't hang on a traditional stick-on-the-wall hook. (I've used them to hang foam board for DIY Calvin and Hobbes wall art I made for my boys' room and have been very happy with them.) Check out this post for one renters' account of her experience with them, and browse the Picture and Frame Hangers on 3M's site for a selection of similar solutions.
If you decide to go with adhesive strips, Dana of House Tweaking has these important suggestions: 1) use alcohol to clean the area of the frame you will hang, 2) use more than just two strips per item.
Helsinki designer Julie Tolvanen's Pogo collection is touted as a "self-contained room on a pole" and we're intrigued. Not only can you display pictures in a way that doesn't leave holes in the wall, but your display method becomes a statement on its own. And you could intermingle art with shelves, cubbies, and more — the possibilities are many.
For a DIY version, make a grid with wood as, pictured in our lead image (found on Poppytalk via 2Modern Blog) and lean it against a wall. Putting a couch in front of the structure would help ensure that it wouldn't topple over.
If you think you can get away with some small holes in the corners of the room where the walls meet, string some wire across a wall, as in this tutorial from Curbly, and you have a long horizontal space from which you can hang light prints or other art.