I'm not an active Sleuther I guess, but I have been reading... for years... and posting here and there.
With that said... what kind of garbage cans do they have there? In my neighborhood we each have one garbage can. It is paid for by size, so most people buy the smallest one they can. Its not actually a can either, its a plastic cart. Coincidentally, my garbage day is Tuesday morning. Do they have once a week pick up? If so, the average house in my neighborhood would already have a full recepticle by Monday... so maybe they can focus on houses with less than full carts? Certainly the garbage man gets to know a neighborhood like the mailman/woman does...
just thinking...