Honestly, I read a piece last week about a town that switched to clear compost bins for exactly this reason. The theory was that if people see the plastic bag or the greasy pizza box sitting on top of the actual food scraps, they might feel shamed into doing it right next time. Tbh, I don't know if shame works, but seeing a bin full of chip bags and those "compostable" plastic liners that aren't accepted here is just depressing. It really does feel like a simple flyer on the bin lid with three big pictures of what's NOT allowed would solve half of it.

My buoyancy last dive basically screamed "dehydrated potato.