I purchased this contraption several years ago (don't ask me what it's called). I used it to help reuse plastic ziplock bags when my children were in grade school and taking their lunches to school. However, over the years, I used fewer and fewer plastic ziplock bags so it went into the back of a cabinet and was forgotten.
When we started farming, my use of ziplock bags increased. Every growing season, I try to preserve enough vegetables from our garden to last us through the winter and early spring. I carefully wash, blanch, and freeze a wide variety of produce. Everything is carefully put into labeled and dated ziplock bags and added to the freezer in our basement.
Last week I remembered this contraption when I was defrosting some green beans that came from our garden. I had to go to a potluck so thawed out several bags of beans. Then it struck me - we freeze the same types of foods over and over again every year. Rather than using new plastic ziplock bags each year, all I need to do is wash the old bags and then change the date when it's harvest/preserving time.
So now I have one more way to cut down on what we send to landfill.