Oh God - another letter from the tax people!

The deadline has now passed for returning your self-assessment tax forms and paying your dues. This year, the Inland Revenue have bombarded me with calculations, statements and several changes of tax code, and I've got completely bamboozled, and ended up paying them some forty quid which I'm not at all sure I owe them, but frankly I got fed up with trying to make sense of it all. The point is, if I - a reasonably intelligent ex-Civil Servant, used to form filling and bureaucracy - can't make head nor tail of it all, what chance has the ordinary man in the street got?