hmmmm... my office keeps a stash of fed ex envelopes that I had completely forgotten about. (We don't use them anymore so they're just collecting dust.) I've only recently started viewing envelopes like that as potential DIY gear projects. Thank you for helping me put 2 and 2 together. DUH!

I only had my eyes open to tyvek in the last few months and it kind of feels like the day I realized what a little pot of gold my dryer lint is for this tight budget prepper. LOL!