Tipping customs vary greatly from country to country. If you get things wrong, you can be exposed to significant embarrassment, so here are a few tipping dos and don'ts for some of the most common - and one or two unusual - destinations.

If you're traveling in Europe, make sure you have the right insurance and health cover, and have access to money.

With a little thought and pre-planning, you can make sure your air trip is as comfortable and pleasurable as possible. Here are some great tips to help you determine if you're in line for an upgrade, which are the best seats on the airplane, and even what to do if you find your passport has expired shortly before you depart.