What a cozy little market! This is the type of place where you'll find necessities and name-brand…read moreitems, but also local products, gourmet foods, produce (including rutabagas, for some reason), beer and liquor and wine, lots of snacks and candy, a frozen food section, and even a hot food area. Doud's is a small market, but it has lots of stuff.
As far as I know, this is one of the only markets on Mackinac Island. There actually is another Doud's down Main Street toward the ferry area, but it's a smaller grab-and-go convenience store, mostly with snacks and coffee.
My hotel was right across the street, so I bopped into Doud's a couple of times during my stay, to grab a bottle of wine (they have a decent selection of wine), some candy for my kids, and some fruit because I needed to eat something fresh. The store is tidy and everything is arranged nicely. They also have self-checkout kiosks, so you can get in and out quickly.