Buy the book! It's the best thing since bread got sliced.
How much is your car worth
Your car is a money bonfire. Trade that thing in for a bicycle or a cheap-ass rustbucket or a pair of sequined fairy wings and save yourself a goddamned fortune.
Once you know how much you can realistically get for your car, use the calculator on the Money Dashboard to work out how much you could save by selling your car and relying on public transport or Uber.