Here are a few ideas for keeping your chips and food fresh.
First use a Sharpie to write the “open date” on the packaging.
When you get down to the bottom of the bag of chips, cut off the top so it’s easier to get in there =). Then use a chip clip or a clothes pin to seal the bag.
If you have a smaller bag, like marshmallows, you can use a rubber band to keep the food fresher.
Store both the clips and rubber bands near the pantry or wherever you will need them.