How I made a digital photo frame with a Raspberry Pi

The idea of a digital photo frame really appealed to me as I tend to take lots of photos but am reluctant to print them all. Having one would let me display all the photos I want in a nice display without the complication of sending them away to be printed, collecting the photos, putting the photos into frames, photo albums etc. I did price digital photo frames online but liked the idea of building my own, and what better way to go than with a Raspberry PI!