Make sure the dental floss is not the waxy kind or it may be a pain in the *** . Also, like was stated, heating with a hair dryer helps, as well as heating water on the stove or microwave (just not TOO hot) and slowly pouring it over the area will loosen the glue in the same way. Then use the floss or fishing line behind them and they will come right off. Buy some 3M wax and adhesive remover at the auto parts store, spray it on and let it sit for some time, just watch it so that it does not dry completely. After spraying a few times, rewetting, and waiting, you residue should come right off with very little resistance. Good luck Mark.

John