well I run from home so I don't usually have a wallet or anything. if I take the bus somewhere to run I just keep my bus pass in my ipod band like one of these that goes around my arm:

http://www.google.com/products?q=IPOD+athletic+band&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&ei=49d3TNGbBZTUtQPqpr2tBQ&sa=X&oi=product_result_group&ct=title&resnum=3&ved=0CDkQrQQwAg

i wish i had an iphone because then it could just fit in one of those. i just hold my phone if i bring it though. and i put the elastic coil thing around my hand and it holds the phone in place.