We have a system (I have a system for EVERYTHING): When they were younger, my kids WOULD NOT close up the cereal, and it was always going stale or being knocked over in the pantry, where it'd spill.
Solution: I bought THREE Rubbermaide pour-type containers that each hold one box of cereal. We do not eat cereal "out of the box" -- ever. Instead, we pour a box into one of these containers. It's easy to close, it's easy for small hands to pour out, and bugs can't get in.
Bonus: The kids have no idea whether they're eating name-brand or store-brand cereal. They cannot tell the difference from taste.
Bonus: We can't start another box until one of our "current" cereals is finished, and we eat it at a fast enough rate that it doesn't go stale. Usually we have two boxes of "kid stuff" and one box of adult-type cereal open at a time.
Solution: I bought THREE Rubbermaide pour-type containers that each hold one box of cereal. We do not eat cereal "out of the box" -- ever. Instead, we pour a box into one of these containers. It's easy to close, it's easy for small hands to pour out, and bugs can't get in.
Bonus: The kids have no idea whether they're eating name-brand or store-brand cereal. They cannot tell the difference from taste.
Bonus: We can't start another box until one of our "current" cereals is finished, and we eat it at a fast enough rate that it doesn't go stale. Usually we have two boxes of "kid stuff" and one box of adult-type cereal open at a time.