Originally Posted by
colmc
So, I've heard stories of the "$20 trick" (sliding a 20 over with the credit card when checking in) being used at hotel receptions in order to try blag an upgrade.
Now, perhaps I'm just very innocent, but that thought would never have even crossed my mind

! Has anyone on FT ever done it? Has it worked?
It's been discussed a number of times on the Las Vegas forum, seems to be where it works best! The city runs on tips....
http://www.flyertalk.com/forum/showthread.php?t=419338
It doesn't seem to work as well elsewhere IMHO