Marc's is one of my favorite grocery stores. They have a great selection of organic fruits & veggies at great prices (1 lb. of organic field greens is usually $3.99, but I've gotten it as low as $.99!). They also have a good selection of Kashi brand cereals and snacks.
Recently, they started selling Speedway gas cards for $25 that automatically give you 10 cents off per gallon!