For months I've had boxes and boxes of slides sitting by my desk at home waiting to be copied. Scanning with a flat bed scanner takes sooooo long and the quality is just, meh. I've gone through a couple of configurations for creating an easy way to digitize slides and this is my favorite.
In addition to the inexpensive little set up shown above, I'm using a macro lens on my iPhone, and black board with a hole cut out for the lens along with black Post-Its for reducing the glare on the slides. This takes a fraction of the time to digitize and I'm finding that the quality is just as good or better than I used to get with a scanner.