I just spoke with the mailroom clerk at my work. I am officially snagging shipping bubble wrap to stuff in my bags. He said that I would be able to grab some free of charge. I hate that sunken in look that bags get while they are being stored. Now I will be able to keep them shaped and I won't feel as guilty about keeping them in their sleepers. Has anyone else done this? What do you use to keep your bags in shape while they are resting?