1. If you make a big batch of wontons, freeze uncooked wontons by wrapping the tray/plate of wontons with a plastic bag and leave them in the freezer. Once they are completely frozen, transfer them into a ziplock bag. They can be kept in the freezer for about a month.
2. To store leftover wonton wrappers, seal them in the packaging they're in tightly and keep in a container (or wrap with newspaper) inside the fridge for up to a week. Or freeze them and thaw before using the next time.