I suppose you could have that on your list for looting trips, the good thing is it's a lightweight thing to carry. But when it eventually runs out? Eww. And I hate to be the one to bring this up, but as a female I would also be looting the shops for tampons/sanitary towels (pads). I don't even want to think about what would happen once those ran out. Hopefully by then, food would be in such short supply that periods would stop altogether.