Why are there so many empty homes?

Available for over a year

A new report from Keep Britain Tidy says litter is getting worse. What are people dropping, and who's ultimately responsible? We hear from people on the front line - the litter pickers. Also - we hear a lot about the number of new homes that are needed - but what about all those that are empty? A 'housing detective', whose job it is to bring them back to use, gives us a tour of her area. WH Smith is a fixture in many town centres - but for how much longer? The retailer's thinking about selling all off its high street branches. And more of us are buying and selling private car number plates - we find out why. PRESENTER: WINIFRED ROBINSON PRODUCER: TOM MOSELEY