Submitted by DariosDentist t3_10lrhnd in LifeProTips
Many people will buy a new bag of chips/pretzels for their road-trip/vacation - open the bag and push the extra air out, then clip it shut. Now you have more space to pack and you won't forget your snack clips to keep your food fresh.
tyco_brahe t1_j5ykiza wrote
The "air" in a sealed bag of chips is mostly nitrogen. Opening the bag is letting oxygen into a mostly oxygen free environment and will cause your snack to go stale faster.