i have lots of those bags with loops for your wrist they're perfect - they fit your cards, cash, lippy, keys and phone and you don't have to put them down so won't lose them!
most places sell something like it - here's some pink fizz:
my fave from warehouse:
http://www.warehouse.co.uk/pws/ProductDetails. ice?ProductID=913
topshop have some similar in all different colours (www.topshop.co.uk)
dorothy perkins have a sexy leopard print one(http://www.dorothyperkins.co.uk/promostores/dp/2006/) and miss selfridge have some fold over clutch bags complete with wrist strap!(http://www.missselfridge.co.uk/promostores/miss/2004/index.html)
i used to try tucking things down my bra, and would wake up in the morning with coins stuck to my boobs - ha ha!!