Determine what your needs are. If you do quite a bit of traveling, you may want a yearly policy that covers you no matter what. If you're just taking the family on a yearly vacation, just pick up a trip interruption travel insurance policy that covers you for that trip alone.
Contact your travel or booking agent for special travel insurance rates for the trips you book through them. They may have access to trip interruption travel insurance rates that are not published elsewhere.
Do a price comparison. Contact several providers and ask for trip interruption travel insurance rates and what's covered in their particular policy.
Try a price comparison website such as World Travel Center (see Resources below). You can compare rates and save on travel insurance packages by several leading insurance companies.
Read the policy. Make sure you read the policy thoroughly when you receive it. Knowing the details of your policy and what is and is not covered is important should you ever need to make a trip interruption insurance claim.
Also available through some insurance services is a "cancel for any reason" plan. This allows you to cancel your trip or cut it short for reasons that aren't covered by a normal policy. The coverage costs more but if you are expecting a problem that could arise and isn't covered, then it's a good option. Check out http://www.travelinsure.com/why/tripcancellation.htm
Sign on the dotted line. Once you've determined which policy is right for you, go with it. Not getting trip interruption travel insurance is a big problem if you're unable to complete your trip when something unexpected happens.
