I think Las Vegas is all about the shows. I wish we went to more, but they can be pretty expensive from -100 if you want a good show.
The water shows in front of the Bellagio were fantastic, so make sure you stop by. In some of the hotels and in front of Paris Hotel, there are mimes and people posing as statues, which was fun to watch.
Quick Tips:
Always try to get free passes from taxi drivers. I think they are paid to distribute them. Just talk about places you plan on going to and they usually offer whatever they have. We ended up only paying for one out of eight clubs because of them and the fact that we were eight girls (wink!).
Plus there are coupons books everywhere. From the lobby to convenience stores and even buses, pick them early in your trip so you can plan.
Best Way To Get Around:
We walked around during the day, which wasn’t bad, but at night, we used taxis. It wasn't too bad, but with eight girls, it takes a lot. By this time, though, they should have a new monorail up that is supposed to be able to transport you throughout the whole strip. Here's a link for more information.