[jhandl]

I carry two government-issued ids; one driver's license; two medical ids; three credit cards, two debit cards and two coordinate cards (two-factor auth) related to three bank accounts; my mother's two debit cards and one medical id (she's elderly and I take care af all her needs); and one medical emergency info card. That's 16. Membership and discount cards are the non-essential ones.

I do have all of those cards scanned and stored in dropbox with 1password, but I don't have good 3g coverage so I carry them just in case.

I carry my fat wallet in a fanny pack. Not very elegant, but incredibly practical.