If you want to drink for cheap, play the nickel slots and all the drinks are free as long as you are playing.
Stay away from the area between Stratosphere and Golden Nugget. I have never seen so many bail bonds shops in all my life.
Not sure if you thought about this, we rented a car from Alamo, for about $120 for 7 days. Ask your hotel, they have discounted rates.
Drive to Hoover Damn. It is something everyone should see once in their lives. Only a 20 minute drive.
Most of the hotels have some sort of deal for their specific shows they offer. I say, see at least one show while you are there. I had to sit through a Celine Dion concert due to the wifes infatuation. Definitely wasted money on that.
Try to hit ALL the casinos on the strip. You may not get to, but the outfits the bar waitress wear are definitely worth the effort, especially New York New Yorks'.