Foil crisp packets are pretty good at reflecting heat. Various kind folk have started collecting these and gluing or sewing them together to make blankets for homeless people.
Today’s invention is a way to short circuit this process so that homeless people can assemble their own blankets from crisp packets dropped as litter by idiots.
The packets would be manufactured with tear-out tang and slot edges as shown, so that any standard size packets can be joined to form a continuous sheet, without any additional materials or tools.
