I also got my grandma's sewing machine - a Kenmore model 1813. I took it out of its cabinet, and will have to find a new base for it. I'm still happy to have it, though!
It has some built-in stitches. But if that wasn't enough, it also came with 30 pattern cams! Cams make the machine do different fancy stitches.
You just pop it into the top of the machine and start stitching! How fancy and modern!
I'm still working on making all the cams work...some do, but some are giving me trouble. I can't wait to play around with it some more.