Admittedly, this video isn't very glamorous, but it shows how to do a hem, how to use ravel cord, and how to do a different cast-off. The main point of the video is to give you another option to use when casting on just a few stitches.
When I use theit USM it always seems like I need some cast-on options other than the long cast-on cuff. Yes, you can buy a short cast-on cuff, but why not knit a cast-on rag? It doesn't take very long, and since I've included a hem at the bottom, you can use that hem to put in just the right amount of weight for whatever you'd like to knit.
You can stuff rolls of pennies in that hem, or fishing weights, or sewing weights, or metal bars, or you can just use the cast-on rag to hang other knitting machine weights. Once you make the rag, you can use it over and over. I use cast-on rags sometimes on the other machines, as well.
Most knitting machines come with ravel cord and explain ravel cord's uses, but if you're a USM user, you might not have used this method, and it really is a very good time-saver. By buying Omega nylon cord at Hobby Lobby, you can have a pretty much endless supply of very good ravel cord (for your other machines, too). I noticed it is on sale this week. I use this stuff, rayon yarn, or even whatever waste yarn I'm working with, for ravel cord all the time. If you can't get rayon or nylon cord, well, crochet cotton isn't a bad alternative - just not as good as the slippery rayon or nylon.