I went to a post office near my house to stock up on some bubble mailers, and I was told there starting to phaze (sp?) them out so I hit up another post office...same deal. They sold me the replacement "sealed air jiffy padded cushioned mailers" anybody used these? I put a throwaway card in a top loader and put it in one than jumped on it...it seems ok, but I wouldn't want to take a risk with higher end cards.