Gang, I decided to see what the "world" (a very small corner of it) might think of my images and sent away for a selection of 4x6, 5x7, and 8x10 prints and a set of mattes and backing board to present it on. I should be clear: I plan to present the 5x7 and 8x10's in mattes, the 4x6 just on backing board alone. No frames. My question is: What do I use to attach the prints to the backing board and mattes? I don't want to damage the print in case someone elects to change its setting. Any thoughts?