If you've got Social Security on your mind, you need to know your "full retirement age" as your age in relation to that affects your benefit level.

Social Security has a big birthday coming up next year -- it's turning 90! It's kept many millions of people out of poverty for decades and was recently supporting more than 71 million people with around $1.

It's possible to enjoy Social Security benefits while retiring abroad, and this trick will help you get the most out of the experience.