Sometimes things go wrong through no fault of your own, but some problems can be avoided altogether. Simple things like wearing a high factor sun cream or checking the expiry date on a passport could save a lot of time and inconvenience. Other things should go withou saying, such as booking your holiday through a reputable travel company and taking out travel insurance. If you want to know how to avoid common travel problems and how to stay healthy on your holidays, visit www.travel advice,net/ www.lonelyplanet.com/healthl You'll also find money-saving ideas and advice on planning your next trip. Next week: What can go wrong when you are buying a Car.