First of all, I apologize if I placed this in the wrong spot...but I wasn't sure where else it would go. Has anyone used these for shipping eggs? http://www.southernfarmhatchery.com/Poultry-Supplies.php Are they a waste of time & money? Or would they be a worthwhile investment? Obviously, if I used them, I would still put extra padding in the box around them. I'm just trying to figure out if I should get some to try for shipping eggs (someday).