Minimizing extra nail holes when hanging photos is always a plus, regardless of whether you own or rent. Here's a great way to hang pictures on the wall without a bunch of extra holes in your wall.
Kara has figured out a great way to hang photos without making a mess. Using scrap pieces of paper, cut them to the size of your picture frames. Tape them up until you're happy with the arrangement. Then, mark where the nail hole will go. Align the back of the picture frame to see how it will hang, and there you have it! Kara also has some tips on fixing crooked picture frames.
(Images: 1. Apartment Therapy; 2. Kara)