I quit smoking years ago. A good thing, considering the price these days. It's almost like prison now, with folks actually smuggling cigarettes over here. But back to food. Years ago, there used to be reusable tubes -- like toothpaste tubes. Open on the tail end, after you filled them up, a clip would seal it. Used to pack peanut butter like that on backpacking trips. I haven't seen those things around anymore.