Tear-by-hand packing tape
by Mark Frauenfelder from on (#1B2MP)
I've switched over to exclusively using tear-by-hand packing tape ($6 for a 50-foot roll on Amazon). No scissors or skin-abrading dispenser needed - just pull off what you need and tear across the tape. It's more expensive than ordinary packing tape, but I don't mind. A true wonder material of the modern age.