I just had my home heating oil tank topped off with 242 gallons of B30 biodiesel. With the recent pre-election plunge in oil prices, it ended up costing me a few pennies a gallon more than regular oil, but it’s worth the small premium to cut emissions and shift some of my energy consumption to renewable fuels. (For most of the past year, biodiesel has actually been cheaper.)
I know that’s not much of a personal sacrifice, but it’s a start. If you’re interested in shifting to biodiesel, check out Laurelhurst Oil. They also deliver B99, but considering how little oil I use (I last filled my tank in December of 2004) I couldn’t financially justify the $285.00 to put a compatible pump on my furnace. Perhaps when my finances improve.