If you are trying to remove a piece of heavy duty tape like duct or gaffer and it is leaving a mess of residue behind, try taking another piece of that tape, sticking it to the residue, and pulling up — mileage is probably going to vary a good amount, but I've been trying this trick with Scotch Tough Duct Tape, removing it from plastic, and it has worked like a charm. In fact, I'm just using the same piece of tape to remove the residue.