I have finally found an easy, accessible and safe way to carry $2k to $10k. I have barely noticed that this "calf sock" is there and the money/credit cards are easy to access. The items cannot fall out of it and it can not slip off your leg. Two of them would allow you to carry up to $20k outside of your wallet/roll.
Here is the copy from the catalog:
"Fool pickpockets and keep valuables safe. Ingenious leg wallet easily slips over calf providing a private hidden pocket under pants. Made in USA of durable polyester spandex with 2 deep pockets. Easily accessible. One size stretches to fit all. Great for men & women. 6" L."
and here is the link:
http://dreamproductscatalog.com/details.cfm?item=10294