Bought a light at IKEA for $10. Love it - the base is heavy, the arm is stiff and will stay where I put it. I tried those lights that stick on my machine, but they kept vibrating off. I was never able to get them to stay put.
The IKEA lights come in 3 models - tabletop, floor, and clamp-on. I liked the first one so much I went back and bought 2 more.
http://www.ikea.com/us/en/catalog/pr...233/#/90214233