One of my favorite artists/ bloggers Jane Desrosier made some really nice little tip videos to post on her blog. Click on the link in the "artsy folks" list to watch them for yourself. I was so inspired I went out and bought some gel medium, so I could try some of her techniques. I've done similar stuff in the past using Spackle, but I think gel medium will offer a bit more versatility- I don't think a photo transfer with Spackle would work very well.
Also, I found the camera, but I couldn't photo my new paintings today because it was so rainy and grey out that I couldn't get enough light to get good shots, even with all the lamps corralled around them. Tomorrow I'm going to Six Flags, so I probably won't get it done tomorrow either, but you can expect SOMETHING from me on Wednesday :)