I bought this to see if it would work as well as double-sided tape for making cards "vanish". It does! Unlike double-sided tape which will leave a residue on the card when you need to
replace it with a new strip, Octopalm wipes off easily returning the card back to its non-adhesive (magical) state if needed. As advertised, you just put a very small dab on the card, let
it dry and you are ready to go. The instructional online video (No DVD - Yea!) was outstanding too. The video was top quality and they did a great job explaining the uses of Octopalm and also taught some routines that they use it for. Very professionally done. Get some. You'll be glad you did.