Now here's a book that could really come in useful. Admittedly you have to put up with the occasional picture of Ms Beeny scowling threateningly at the camera (implied message to dodgy tradesmen: mess with me and you'll be talking two octaves higher for the rest of your days). And, yes, some of her estimates manage to be simultaneously both vague and strangely precise ("doorknob: £5 to £44"). Nevertheless, this compact little book -- small enough to slip between a builder's arse cheeks -- is bristling with tips that could save you a small fortune. Or at any rate take a good deal of the stress out of dealing with plumbers, electricians, tilers, carpet-layers, glaziers and the like. With immaculate logic Ms Beeny dissects each project into its component elements and pins a time and a price on each. Costings, of course, will vary between different parts of the country. And a few years hence they might well be out-of-date. But hey, it's a start. Let's hope they keep it regularly updated.