By Real Simple
Updated January 30, 2009
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Credit: The Container Store

Klip-It Lunch Cube

Compact enough to fit inside a purse or backpack, this clever box contains dividers that separate―and stabilize―your meal and accompanying snacks. The airtight silicone seal prevents your bag from smelling like a tuna sandwich. 5 ⅝” x 5 ⅝” x 3 ¾.” Microwave, dishwasher, and freezer safe.

To buy: $5, containerstore.com.