For those of you that haven’t heard of this, it works sometimes, and it doesn’t sometimes. Here’s Vegas on a Budget’s recommendation of what to do, followed by a disclaimer of sorts:

Walk in to the check-in desk of your hotel room, and if you have previously booked a standard room, this works even better. When you get to the front of the line, pull out your credit card, driver’s license, and a $20 bill. Set the $20 bill in the middle of the two cards and politely ask, “Are there any complimentary upgrades available?” The desk clerk may just offer a free upgrade! If it doesn’t work, no sweat, at least you tried. In most cases, the clerk will return your money; be prepared if they don’t. They have the ability to upgrade rooms at their discretion, so this is perfectly legal. We have heard of some places have tried to ban this, but hotels don’t give an official answer on it. Give it a shot!

If you’re the type that doesn’t do “tricks” like these, simply speaking with the hotel clerk about what you intend to do is also an acceptable practice. Chances are the room you’d have been upgraded to would sit empty anyway.

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