trick for hanging photos, especially in a gallery wall: You simply use the painter’s tape to establish the position of the nails on your wall, use a level to keep them straight and hammer the nail into the right spot.
OMG!!!! this is AMAZING .... PURE GENIUS!!!!! A trick for hanging photo collections: Lay out your arrangement. Flip frames over. Lay waxed paper on top of frames. Mark hanger/nail spot on waxed paper. Flip waxed paper over and tape to wall, nail into wall where indicated. Tear down waxed paper. Hang photos.-- Found this ONE day after I spent HOURS hanging a "gallery wall" - Click image to find more DIY & Crafts Pinterest pins