I like how Canon has built that white card into the 580EX, but when you ceiling bounce flash for vertical pictures with your 580EX (or ceiling bounce for vertical or horizontal for the 550EX or others) has anyone found a good product to use to redirect a little light to get rid of the shadow from the ceiling bounce? I've used index cards with rubber bands and comic book backing boards with velcro and even (in a pinch) my hand. It's interesting that most non-photographers actually like the hand ones (it looks as if you've added one - or two - warming filters). Anything out there especially made for this?