You don't have to worry about BPA with the completely stainless steel PlanetBox ($35-$56). These containers come in three different sizes that offer a variety of compartments to keep all your foods completely separated — even hummus or yogurt. You can order just the containers, or order sets that come with a carry bag ($12-$14) and smaller stainless steel containers ($5-$11) that fit inside the lunch box for dips and dressings. There's also a removable smaller glass container perfect for popping in the microwave. The PlanetBox is dishwasher-safe. They may seem pricey, but think of all the money you'll save by not eating out!