• cut the neck off a plastic bottle
• thread the end of the bag through
• fold the bag open around the bottle neck
• close the cap, trapping the bag between the bottle neck and the cap.

I’m sure it works but any other method of closing the bag from the top two rows are better imo, at least for bread.

Bottle the bread?

Idk

You put the bread in a bottle and you can just put the cap on it to keep it fresh. You can just pour it into your toaster after that!

Cut the top off of a 2 liter bottle and put the bread bag through the neck, spread it around the neck, then put on the bottle cap.