You don't need to tack a full cap down all the way round. It's so secure - it custom fits your head rather than just sits on top of it.

I attach at the hairline (one piece of Walkers A contour tape, sometimes with a little white glue), temples/sideburns (one piece of Walkers C contour tape attached vertically each side) and the back (one 5 inch Duo Tac boomerang tape with a Walkers A contour underneath it). Lasts more than a week easily, could go longer if needed. At change out time, dab with Debbie's Lace Release, wait two minutes, cap lifts straight off, tape is easily removed and no messy residue.