I have 7

3 grocery store cards
CVS
Riteaid
AutoZone
Big Lots (Just added this one.)

-Borders
-American Eagle Outfitters
-Vitamin World
-Lids
-AutoZone
-Office Max

I have discount cards for grocery, movie theaters, and Barnes and Noble, but I don't keep the miniatures on my key ring, since I have too many keys on the ring, anyway.

Giant Eagle Supermarket
Best Buy
New York & Company (clothing store)
OfficeMax
library card

Smith's Grocery Store
American Eagle Outfitters
CVS

Stop & Shop
Shaws
CVS
Hallmark Gold Crown
Minuteman Libray Network
Boston Public Library
Blockbuster (hasn't been used in years)

Just 3 -

Best Buy
Petsmart
PetCo

None.

5, I have more cards than keys on my key chain. lol!

Kroger
Food Lion
Borders
Best Buy
Kmart

I have two. One is for Olgas it's a restaurant, I really don't use it much. The other is my associate reward card for the grocery store I work at. I use that all the time.

Petsmart and Starbucks

I have a Kroger, CVS, and a Speedy's swipe card on my keychain. :)

I don't have any right now. I keep them in my wallet instead. I don't have good luck with those cards, since it seems that they are always wearing out and tearing off. I had an Albertson's one and it fell off, so now I carry the big card in my wallet. My Fred Meyer card I keep both the small and the large in my wallet as well. I have a Curves for Women card that I use to track my workouts and it's the only one I keep on my keyrings. I'm actually on my third card, though. I had a library one but again that one became flimsy and tore off, so I just use the big one. They are convienient, but I am clumsy and am always dropping my keys.