I actually like the thinner, "Flimsy" cards. I have too darn many cards in my wallet already, and carrying 3 FF cards, 5 hotel cards, and a couple auto rental cards makes my butt lopsided.

I used to put all my numbers on a small laminated card that I just carried around, but a number of airlines have started getting persnickety about it, and will only let me confirm FF#'s at the checkin counter if I have the actual card. And since my company travel agency screws up about half the time, it's a must that I confirm at the counter.

So give me those thin flimsy cards so I can shove them all in my wallet to make the check-in people happy.