i hear you on that pherelas, bus passes are a nightmare! My college offers free travel for those living 3 miles+ away from the site which is fair enough, but because i'm 2 away i have to pay full fare on a busy bus used by everyone that wants to go on the Wrexham-Chester route, even though many of the school buses go past my stop anyway. Well, i dont have the patience or the required stamina to walk 2 miles up hill every morning, or the required wonga to pay 90p each way. so naturally its the car. great, that helps...
Also, Biodiesel, something which can be as simple as straight vegatable oil in your VW's fuel tank. Biodiesel is carbon neutral in itself, being as Co2 emmisions are nothing more than carbon which was stored in the the plants beforehand, rather than releasing carbon which has been stored for millenniums (fossil fuels) causing no problems.
Here's the kicker. If you don't declare your production and use of biodiesel (AND PAY THE APPROPRIATE DUTIES AND FEES) then you can be fined and/or prosecuted. sorry but that is the government moneygrabbing.