The Big Switch but how 'big' will it really be? Two energy companies say they won't take part in the energy price campaign spearheaded by Which?, the others are still sitting on the fence. Royal Mail says that 2nd class stamps are the cheapest in Europe. As the price of postage is set to increase we investigate. More confusion over whether you can drive with a small amount of alcohol or drugs in your system and still be covered by some insurance policies. On the eve of huge changes to tax credit, warnings that many people could lose out as a result of misleading letters from HMRC and a landmark ruling from the Financial Services Ombudsmen on the withdrawal of life-long pet insurance by one company. Paul Lewis presents.