I can't tell you how many times I've been interrupted while in the middle of taping bars. The phone rings or I forget to grab the electrical tape. Or, worst of all, trying to cut the end when it slips out of your hand and flops around and around, enravelling the work you are about to finish. Then a few weeks ago I found an answer. I was hanging out in my buddies garage and saw him grab a spanner wrench and use it to pinch the bar and hold his tape in place. Where has this been all my life? Now I use this trick every time I need to tape handlebars and I'm passing it on to you.