.. now this was a long time ago, around 1994, but it was awesome.
I know the rules have probably changed, so no one tell me they don't do this anymore - they probably don't - but this is what happened...
We were broke, early in our marriage, and arrived after driving 12 hours from Philadelphia. Anyhow, I had found a great rate at a place on I-drive. When we got there (around 2am) I found that it was an absolute pit and that we wouldn't stay there.
We drove over to the CBR where we had our honeymoon. I walked in, my wife is in the car crying because she thinks our vacation is ruined. I can't afford the (then) $129 per night it cost, but I figure I'd try. I walked to the desk, told the guy my situation and that my wife was in the car, our honeymoon, etc. He tells me that I was eligibile for the special "walk-in rate" of an amazing $49 per night. I couldn't believe it. I don't know if he just helped me commit larceny or what, but 70% off at the last minute at 3am was awesome.
Don't know who that guy was, but I'll never forget that magic. My wife was nutzo-excited.