Ask your bank if they do it for free. A number of them offer it up now....
Is any insurance worth it(other than legal requirement) If you don't think you will be ill and/or wont get knocked down, injure yourself don't bother with it. Make sure you have your EU medical card should you be going to the EU and a medical evacuation company that does cheap rates for flying you home on a stretcher with an oxygen mask..
If you wear Calvin Klein undies its probably worth considering as they tend to go missing when baggage handlers look in your case.
If you are not going abroad it probably isn't worth getting either :0