I'm a CVS person myself. But this Walgreens store is right on the strip not far from Harrah's. They had everything we needed. Drinks, snacks, beer, souvenirs, toiletries. They carry Diet Dr Pepper! $2 for a 20 ounce but I'm not complaining.
There is a Denny's located on top. The Half off box office is super close too. Store seems to always be busy (of course it's Vegas). There was a store employee at the front door greeting each customer. The check out line was long but it went quick. They had several registers (maybe 10) and many cashiers to cover. The line curves around and the computer system will tell you what register to go to. Good store great location. I'll be back for my Vegas souvenirs.