Due to where I live, I don't have access to paper cards (USPCC, etc). Most of the cards I have are plastic cards. Whenever I try applying a breather to a plastic card, it'll stay for maybe 2 or 3 minutes at most and isn't reliable at all. Plastic cards don't bend and don't keep the bend when they do bend (unless I crease them of course ). None of the crimps I know ( mainly from ECT, Vernon, Mr England and Card College) are durable enough to be usable. Is there an alternative for plastic cards?