Check out the major insurance comparsion websites, you know the ones with cheesy TV adverts. If you don't know, then here is a few listed below.
Take a little time to find the best deal possible on all the insurance web sites and then visit QUID CO.
Quidco is a cashback cooperative that provides its members with money back from their purchases by simply using the Quid Co site to refer the order. How much cash back you get varies but you save over £100 on your car insurance policy.
The best deal I have heard of using this method is £26 for a years car insurance!