The non-sterile home-made bandage rolls seem like a good idea to me. Once a sufficient layer of those sterile 4x4s are on the wound, the others are right - something else can be used to secure them or create a pressure bandage. Using your (very expensive)Kerlix for that seems unnecessary, but I don't think using Wal-mart fabrics, that could likely be non-absorbent polyester blends, are the way to go. I think I might hit the fabric shop for some muslin. And while I'm at it, I could make some triangle bandages too.