has videos on YouTube. I love how to videos...I've learned various knitting and spinning techniques. Its pretty exciting.
Here's the latest amazingness I found...
Fusing plastic grocery bags...
This worked out perfect since I never seem to have first class mailing bags or boxes. My first attempt ended up a little melty...
Here's the final one. Looks pretty cool and is stronger and thicker than the PO's tyvek bags. I just sealed the edges with packing tape and voila!