For the last at least 10 years I've been staying exclusively at Caesars/Harrah's properties in Vegas. In fact, I recently had Planet Hollywood booked again (my personal favorite) but cancelled when I was offered free rooms at the Venetian. I've only gambled in the casino - never seen their rooms (except online) and never ate at any of the restaurants. Any must-do, must-see advice? Any suggestions at all? My son is turning 21 and we have a Bella Suite. What reasonable room upgrade should I ask for if I try to $20 tip trick?