I live in Hopefield Avenue with my family and have been attempting to reduce our domestic carbon footprint as much as possible over the years. This includes the obvious things like loft insulation, draught-proofing, secondary double-glazing (with heat reflecting glass), efficient condensing boiler, low energy light bulbs throughout and less obvious things like individual programmers on radiators so as not to heat rooms when noone's there, and a clean-burning wood stove. This year, hopefully, having been granted planning permission, I'll be installing a solar water heater of 3.3 square meters promising around 4000 units of hot water per annum. Other, only partly successful, projects so far have been rainwater collection and use for washing, and greywater recycling for flushing toilets.
Transport-wise, we joined the Streetcar club 4 years ago and also acquired a G-wiz electric car which gets us around London once or twice a week. Getting used to the limited range (40 miles) and remembering to charge the batteries takes a change of mindset, but you get used to it!
I'd be happy to discuss with or show any of you Transition folk these projects.