Here are three wallets that carry both your phone and your Benjamins (or Washingtons).
"Some consumers might not like the additional bulk these wallet/cases can add to super-slim smartphones, and with constantly changing phone form factors, these cases won’t suit your needs forever. More importantly, if you lose your phone, in this case (no pun intended) you lose your wallet, too. But if you still prefer to consolidate all the clutter in your purse or pocket, these three products might do the job."
Via Mo Hall