The big things in life look after themselves. Birth, love, death - they're all terrifically exciting but they happen whether we like it or not. It's the little things in life that cause the most trouble. How do you deal with the million and one everyday challenges?Help is at hand. For the first time you can get intelligent practical tuition on the level you need it. The trivial level. After years of exploring the small pockets in life's backpack in his celebrated 'How to' column in the Weekend Guardian, Guy Browning has the rules that can help you move safely and effortlessly through the micro-chicanes on life's byways, including: Should you cross your bridge when someone else is burning it? In a monogamous relationship is it morally acceptable to tuck your side of the duvet in? What's the clearest way of giving directions to a place you've never heard of? What is the best way of establishing a queue when you are the first person in it? In breaststroke what do you do with your head when it's underwater?