I think fuel prices are an interesting one.
The government desperately needs to reduce the deficit. Labour absolutely destroyed public finances, and inefficency in government is absolutely disgusting. Fuel duty brings in quite literally billions of pounds that we need to run the country.
On the other hand, public transport outside of London is nothing short of a joke. Cost, frequency, reliability, and general quality of the service means that it is borderline useless for most individuals to rely on. As a result of this, a large portion of the general public need to use their cars to get to work. Therefore, the car (a luxury item) could be argued to be an absolute requirement.
I think my grandad put it right when I went to visit him the other week. The average joe thinks its 'normal' and 'right' that they should have a 60" plasma, a laptop, super fast broadband, sky tv, 3 holidays abroad a year etc... as well as being mortgaged up to the hilt on a 500k house, funding lots of this through balance transfer credit cards and PCP car deals to keep up with the Jones'
Reality is, if people were more selective on where their money was spent, rising fuel costs for the average person at home wouldn't be a huge issue as there would be more spare money left at the end of the month.
The problem is, shops are rising their prices due to increasing haulage costs... costs caused because we don't put enough freight on the rail/canal/whatever networks that we have.
In short, we need to scrap everything and start off fresh, something which in itself costs a lot of money.
I don't see fuel duty going down, and I expect any fuel stabiliser would be when we get to 1.50 a litre. at least.