Stash kid-size snacks in these 1.2 and 2-cup containers. With their twist-tight seals, even juicy snacks like fruit salad won't leak in the cooler (whether your child manages to keep the food off his clothing is another matter). They're also great for portion control if you're keeping tabs on what you eat.
Price: $2.40 to $3
Available at: Wal-Mart, Target, and grocery stores nationwide