I had the "window left open" event just now and so had to set my peeps to clearing up the mess. After a little while I heard a series of "No"s from the peeps and realised that the garbage can must be full. I dropped one of the kids on the can to empty it. Another kid came running up behind him and also started to empty the can, so I had two kids running off with garbage sacks, both almost as big as them. I praised them both to save them the journey to the gate, and set the peeps once more to clearing up the mess. After they'd finished, and the house was spic and span again, one of the kids I'd praised before ran up and started emptying the garbage again. A really tidy family!

The silly thing was, I forgot to look to see what the garbage can looked like when full!