If your car insurance is soon to be up for renewal then it is definitely worth while spending some time comparing prices to get the best deal. There are some great comparison sites out there which will allow you to compare the price for your car insurance from multiple retailers at the same time. If you are choosing to pay by monthly direct debit, always be sure to check the total price you will be paying after APR etc. as often its not always the first retailer that comes up that offers you the best price.
It is also worth checking cashback sites such as Quidco or Top Cashback to see what they will offer you. You may find a policy that costs £400 but the retailer is offering £80 cashback, giving you a huge saving on the overall price. Although this cashback is not always guaranteed, they do usually work well and can help cut the cost of your motoring insurance.