Cash Can keychains from Sunshine Products cleverly hide your money. Speaking from personal experience, I can’t recommend them enough.
On our great American road trip, my wife and I got t-boned crossing an intersection in Tucson. Because our car was totaled, we had to pack all of our belongings into the back of a taxi to get to a hotel.
Earlier that day we had spent the last of our cash at The Thing so had nothing to pay the driver – until my wife remembered the Cash Can hanging from my (now useless) car keys. Sure, the taxi driver would have taken me to an ATM if we had no money, so this wasn’t a real emergency, but having the Cash Can make a difficult day a little bit easier.
If you live in the States, go and order one right now – someday you’ll be glad you did.
(By the way, does anyone know of a UK equivalent? Now that I’m back in London I have to deal with currency too large – particularly the monstrous 50 pound note – to fit in the American-sized Cash Can).



The £10 note is still to big (vertically) by about a centimeter.
How is this for storing £20 or £10 notes?
bloomin’ merkins- it is your money that is too small. I must be because you don’t have to fit a crown onto the presidents head!
Try getting one from Texas- surely they have a bigger one?
I’ve come across this UK option before: http://trueutility.com/pocket-tools-store/cash_stash.html
I haven’t tried it myself so can’t vouch for it.
I have the alternate plan “Taxi drivers all take cards in London” :)
I miss what this offers me over “Just keeping money in your wallet and not spending all of it”