Think of all the average trash a person goes through in one day: Straw wrappers, stickers, receipts, plastic, paper, coffee cups, bags, tags, the whole lot. Now imagine pasting every one of those ...

Stickers, once a cherished staple of childhood, have made a remarkable resurgence, sparking memories of glittery unicorns on school notebooks, shiny Cadbury Wowie decals tucked into lunch boxes, and ...