Review (4/5): Best one on the market (sorry competitors)
I've now used them ALL and this is the BEST one on the market.
I like the blue (reminds me I have it on, so I don't end up trying to store it in my car or office or wherever I am when I figure out I still have it on)
It is only slightly less tacky than the competitor but the rigidity makes it so the very corners don't stick.
Will go to 5 stars when they get a better adhesive.