For years I used my finger to spread glue beads on the edges of boards.Then, in sweaty haste, I’d wipe my fingers on my pants and another pairof nice jeans would become “work-only” attire.To make the job less messy, all you need is an old credit card (or new,your choice), a 3/4-in.two-hole EMT conduit strap (about 50¢ at a home center)and two 1/8-in.nuts and bolts. Crook the conduit strap in a vise tolevel the conduit strap wings with the bottle cap. This way the creditcard stays flat when y...