So, let me ask: What do you think we do with trash in Taiwan?
We give it to old people! Seriously, there are guys driving around on rickshaw type things that take your trash for you. The city pays hobos and old people to collect garbage. People will put and empty can or bottle on a window sill and just leave it. Sure enough, within in 20 minutes and old dude will run over and snatch it off.
Seriously, it is pretty cool.