I'm going to steal Dan's template, it seems to work, and we have a lot of the same cards.
24 total cards.
AMEX Consumer (3): Platinum
Premier Rewards Gold
SPG
AMEX Business (2): SPG
SPG (yup, I have two of them).
Chase (2):Freedom
Hyatt
(Chase recently closed a bunch of my accounts for multiple apps. I also recently closed a BA card, I hope to get a recent BA application approved soon.)
Some generic Chase business card, $100 CL.
Citi Consumer (5): AA Visa - old 30/35k offer
AA MC (converted to Bronze to keep fees down) - old 30/35k offer
AA MC (recently switched to Hilton Visa)
Platinum Select
Professional something card
The last two cards are probably my oldest cards from a major bank
Citi Business (1):AA Business (Visa) - Just approved 75k offer
Store Cards (4)Banana Republic Lifetime Luxe
Gap
J. Jill (pre-approved offer, used it to build my credit back in the day)
Dell Financial Services CL (does that even count?)
Barclay's Consumer (1):US Airways
Barclay's Business (1):US Airways
Capital One Consumer (1):Venture
Capital One Business (1):Venture
Discover (1): More
Discover Business(1): Discover Business card
Bank of America(1): CashRewards Visa
I never realized I have so many cards, and I'm still on the prowl for more