Price of diesel per litre in may 2007: 96.8ppl*
Price of diesel per litre in may 2008: 126.7ppl*
So 89 litres to fill my 300tdi landrover cost £86.15 in may last year. Now it costs £112.7
That's a 26 quid difference.
I've not had a full tank in one go for 6 months now.
If I was filling up 2 or 3 tanks a month to travel to work and the like, that's nearly an extra 100 quid a month. Robbing swine's.
Fortunately I've not been stung too badly on the road tax hikes - £200 per year now; if I owned a td5 from 2001 it would be £455.00! in 2010
I don't do many miles anyway and if I can walk to get where I need to go then I will. I do even less miles now.
I even used public transport to get from leic to bham last week (not having been on a train since before 1995, I was sort of looking forward to it). We paid for a return train ticket, about 9 quid, and ended up on a bus because there were no trains running on that saturday.

Public transport - I can't say what I really think of it on here.
*figures from AA fuel price archive and petrolprices.com (average prices)