2nd Lt. Bethany Hein: Hi, I'm 2nd Lieutenant Bethany Hein, and I'm from Middletown, R.I. A commissary is a grocery store on base. You get every brand name, everything you could get at any local grocery store, except it's on base. It's tax-free, and it's inexpensive. The fruits and vegetables are very fresh. They started with organic groceries, so I'm a big fan of that. I shop here mainly because it's a healthier choice than any kind of fast food. I'll stop on my way home from work, and I'll also stop here for lunch during the day. It's a great place to be.