Oh they joy of growing mushrooms!
Sometime doing things yourself can make financial sense and be a soul satisfying experience, very much unlike the home mushroom cultivating kit described by Florence Fabricant in today NYTimes. If you are not familiar with oyster mushrooms they are somewhat under satisfying. They lack a very distinctive flavor and/or texture and produce a mostly flaccid slimy cooked fungus product.
Instructions include placing box in a dark place and misting with water. Sounds like a nice place to do some serious reflection. Alone, in the dark, watching a box of mushrooms grow!?! If you escape the self-destructive depression this might induce you can take a picture of your bounty, post it to Facebook and receive a complimentary refill of mushrooms in mulch. Worth a try.