For what it's worth, I've given up my car (I live within easy biking distance of work), live in a small townhouse (heating costs $20/month in the winter thanks to good insulation and neighbors eliminating heat loss to the sides). I purchase few goods, and try to keep most things as long as possible. Most of my entertainment/shopping is within walking/biking distance. I try to limit waste and compost/recycle everything I can.

My electrical usage is so low that I don't think installing solar would be a net win in carbon emissions.

Based on various calculators, my carbon footprint is about half that of a typical American. Now can I ask for a 28% decrease in carbon emissions?