Wave Clamps

I now have very short hair and it's perfect for fingerwaving...the only problem is that I can't seem do it on myself. I saw somebody mention wave clamps on another thread and was thinking about buying some. How do you put them on? and approximately how many would I need?

oops...I just realized how they are used and I guess I have to be able to do them on myself first before I can put the clamps in lol ...well, I guess I'll have to stop being lazy and practice:eusa_doh: