U-Konserve Rectangle Divided Container I grabbed the U-Konserve Rectangle Divided Container ($18) because it's perfectly sized to pack my kids' favourite lunch: A sandwich on one side and a handful of fruits and veggies on the other. While U-Konserve has a variety of size options, we turn to this one most often. Image Source: Amazon U-Konserve Rectangle Divided Container $18 from amazon.com Buy Now