Welcome to the future of reusable bags
Non-grease paper bags have been developed as an innovation of the regular paper bag to reduce the amount of grease that stain and damage the regular paper bags. With a bigger version of this sandwich bag, more food items would be able to be held in the bag without additional mini bags.
We already have reached the level of insulated bags. With these, items inside will stay at the proper temperature, keeping them fresh. While these are helpful for a short period of time, there could be a bag that keeps items fresh for weeks in the future.
With a bag that could keep food fresh for long periods of time, it would be more convenient to bring perishables on road trips, camping trips, and any other excursions. This is also lighter and more convenient than a cooler.
Can you imagine a flying bag to carry around your stuff in the store, a mall, and wherever you go? With the advancement of regular bags, we can one day walk bag free! This would be a more portable and alternate version of a device to carry different items.