Silicone muffin cups make surprisingly good lunch box dividers

Yes — silicone muffin cups work fine as dividers in a regular lunch box, as long as your food isn’t soupy.

They’re flexible, so they squish into any box shape and section off space. Throw one in for grapes, one for crackers, one for cherry tomatoes, and suddenly nothing is rolling into your sandwich. They’re food-safe, non-stick, dishwasher-safe, and cheap. You probably already own a set.

The catch: there’s no seal. The cup presses against the box wall, but it doesn’t lock in liquids. Juice from cut fruit or a saucy dip will seep between the cup and the box. So keep wet foods in a separate small container, and use the cups for dry stuff.

For anything wet, grab a real bento box instead.