My sister told me today that she was on the hunt for old coolers to use as a container garden.  I'm sorry......what?

Doesn't that sound ugly?  Or at the very least untraditional.  Big yummy greens sprouting from a big blue plastic container?  I suppose, in theory, it would be good because it is an insulated container, and it does allow for leakage.  It just sounded to odd, and so it got me thinkin.........