Saw this on Shark Tank and wanting to support my fellow Nashvillian neighbors, I purchased some Nerdwax. Had an initial, minor issue with slipping until I checked out their helpful (and humorous) video offering various tips on proper application (I'm female so I don't mind "asking for directions"). This is a gem of an idea; I'm super happy with my Nerdwax and I wish the cute couple creators the very best of luck!