Councilwoman Garbo has completely overhauled the city's waste management program. Her latest obsession is telling people to make sure they leave enough space in between their bins. (This is a metapuzzle. You'll have to figure out which answers from daily puzzles can be used to solve this one.)
Your refuse can be put to good use elsewhere, if you keep track of what kind of refuse it is.
Lots of stuff you throw away can break down naturally:
(But these are just examples.)
This stuff will just take up space, unless someone can pull something useful out of it.
What can you build to win Garbo's approval?
Hints: There are no hints for the metapuzzles!