Take a $20 bill, put it between your driver's license and your credit card you are using for checking in. Fold it up and just let the part that shows "20" stick out and hand it to the front desk clerk. The secret is being cool about it like you expect it. It becomes second nature pretty quick after the first couple times. Been using it for a long time. It works in other cities too. I have seen where some people say it is doesn't work anymore but they are full of crap. Try it, you'll like it, as the saying goes.