If you stay at the Luxor, try to stay in the pyramid instead of one of the outer buildings. It's cooler.
Also, if you're not a smoker, DEFINITELY request a non-smoking room. I'm from an indoor clean-air state, and the biggest shock about Vegas my first time there was the cigarette stench that permeates the entire city. Everything I brought with me had to be washed or drycleaned when I brought it home - even the stuff I never wore! Now I'm careful not to bring things that can't just be thrown in the washer the second I get home.