People usually only do puzzles once. What about a puzzle collective where people could drop off their triumphantly completed puzzles in exchange for someone else’s equally impressive box of victory? Or maybe they bought a puzzle that was too challenging and they want something a little more attainable to build their confidence and sense of self-worth. Either way: a place to trade puzzles! Maybe even up the anti and have a little cafe where people could engage in the above-mentioned exchange and/or drink a hot drink while plugging away at a collective-effort puzzle. An alternative to reading a paper on your coffee break, or a comfortable activity for a non-chatty coffee date.