I use a few kinds. For odd jobs, I'll use the thicker stuff from the BORG. For permanent solutions I use "transfer tape" which is a thin film like Jim describes. For template routing I need a tape that is thin and one that does not have a rubbery adhesive that allows movement. It is sold as turner's tape and under other names. Unfortunately places like Rockler and Woodcraft source different products for the same item number so you cannot be sure what you are getting. My solution (although this may not help you) is to check the tape wherever I happen to be. Like you I start looking as I get to runing low. If I find a tape that has the characteristics I'm after, I buy it. I know, real scientific, huh? I have had success with Intertape crepe paper core (holds tight and releases well) and Spectape (holds tight but is a bear to get off after about 30 minutes).