lemons are great for this. You don't need all of it, just the skin. press the lemon and enjoy the juice, put the skins on the glass rack and you'll have a fresh lemon flavor when opening the door. needs replacing every other wash or so (they get hard and stop smelling)

Yea, it's pretty good folks.

I'm sure there will be many a paper written about the specific kind of prison featured - it's a bit of an antithesis to the panopticon in some interesting ways.