It wasn’t something that had occurred to anyone before. But the tarpaulins from old trucks turned out to make practical, very durable bags. It's a philosophy of "waste not, want not.” Markus Freitag, "We tell ourselves a little bit, 'children of the Compost Generation'. So our parents taught us how to throw away the green waste that something new can grow out of it. And I think that's part of the basic concept of Freitag."