We wash and reuse our Ziplock bags. There are plenty of times that we use Ziplocks for things like snacks, organizing, sandwiches, dry good, etc. Often you can just wash and reuse those Ziplocks and not have to purchase a box so often. It takes a few minutes to wash and dry your bags and I would even say let them dry overnight before putting them away. Before you put that greasy item in your ziplock bag, stop and consider saving that ziplock bag and set it in a container instead. 🙂