I can't believe I'm reviewing a drug store but this place was awesomely convenient! I was staying across the street at The Mirage so it was a good place to grab a bottle of water, etc.
The prices were not too bad considering this is Vegas. (With an exception for the ladies: OMG sanity supply prices here are ridiculous!! It's more than triple the regular price!! But I was desperate.)
They also carry a large selection of souvenirs and they have an ample alcohol aisle...including a champagne section.