Covenant is the place I go for laundry detergent, spices, and home furnishings like sheets and towels. Their prices are really good, especially for the spices (big bottles of most spices for only 99 cents!). The detergent is usually marked down as well.
They've also got pretty much anything you could ever want--kitchen utensils, a meager grocery section (but good for picking up cheap stuff like vinegar or oil) with discounted Little Debbie goodies, cheap makeup if you're a colorful nail polish fiend like me, sewing kits, light bulbs, laundry bags, storage supplies, school supplies, bath mats and throw rugs, lamps, window shades and plastic for wintertime, candy, socks and basic underwear, and seasonal items like holiday decoration or sand pails, plus pretty much anything else you need. The people who work there are helpful, and the prices are definitely great.