T.O.D.
My first cell phone was about the same size as Maxwell Smart's shoe phone. To this day, I blame that phone for breaking my back. However, since then my thing has gotten smaller and smaller. Along the lines of Ben, I use Net10, so that I can buy my minutes as I need them. Ten cents a minute, and no other charges of any kind, you can't go wrong with that. Some months I use a lot of minutes and other months, very few.