I understand this line of thought, however, the BOBs I'm putting together are for my kids and their families; I'm afraid if items in the kit are easily available for use, then the kit will be incomplete at a very inconvenient time. It's a tough call. I have enough duplicate materials in my autos and house, not to have to ever get into my BOB. It's totally independent of everyday use stuff. It will always be available as designed, complete and ready.