On my second trip to Vegas when I first turned 21, tempted by 2 free nights at the Stratosphere , I drove down from Northern California and got in around early evening. Lost my entire bankroll (which was probably 2 or 3 hundred) within 12 hours, and spent the next 12 walking up and down the strip, taking the elevator up to the hotel rooms at just about every hotel, and snagging a set of shampoo/conditioner/lotion bottles from every housekeeping cart I could find. Kind of became a sport for the day. Some I grabbed from the cart while housekeeping was in the room cleaning; others I asked for. One hotel wouldn't let me up without a room key (this was clearly back before every hotel checked for room keys), so I had to call from the lobby with a story that I had already checked out but wanted to get a set to take home with me--housekeeping brought a set down for me, and I didn't even have any money to tip! It was cool though, because it was also when hotels had different designs for their toiletries. I remember Luxor had pyramid-shaped ones, and Caesars had bottles shaped like pillars. Walked my ass off, passed the whole day for free (except for a slice of pizza at Sbarro for lunch), and went home without having to buy shampoo for months!