This video Resistance linked to is also interesting - recovering oil from plastic. Again, you have to evaluate whether he is spending more energy melting the oil than he is getting back, but it sounds good.
Like most bloggers, I grew up with an innate fear of trolls. It wasn't until I was a bit older and saw a troll in a comic book store that I realised how far away this animal was from the mythological creature I'd learned about on usenet.
My wife and I noticed several months ago that the food we chose to buy was getting much more expensive. I was probably more inspired by Michael Pollan and she by Mehmet Oz, but years ago we agreed that we would cut out the hydrogenated stuff and the high fructose stuff and the high sodium stuff.