Hi, I'm new to this board and have found it a great help! I've been to Vegas dozens of times and have never once thought to use Hotwire or Priceline, let alone trying to tip for an upgrade. I'm planning a trip in April, but we're going to get 2 rooms for 7 people. Has anyone ever tried the $20 trick with more than one room? Does it become a $40 trick? (I'll be sure to use the links from this site!) Thanks!