Are there many drug stores in Aruba that sell necessities like toothpaste and shampoo? I always manage to forget to pack something that we need!

Of course, there are many drug stores, pharmacies and mini markets in Aruba. If you want to shopping for cosmetics, there's a good mini market in Oranjestad called Antraco Bazaar. I used to shop in there because the prices are reasonable.

I never know what we can and can not take on airplanes now a days so I don't usually bring the small stuff. Having a store nearby will help. I don't need to bring the stuff back home with me so if they have travel size stuff I'll get that. In these mini markets, do they also offer snacks and drinks?

Yeah some airports these days are ridiculous with their security. But I think that toothpaste and toothbrush would be okay to take with you.