One of the most important pieces in a simple estate plan is a well drafted Power of Attorney. While a Last Will and Testament only comes into play after your death, a Power of Attorney is a legal document that can have a profound impact on your day-to-day care and well- being in the event that you become incapacitated or unable to manage your own affairs at some point during your lifetime. Here's a short video that does a nice job of outlining what a Power of Attorney is and why having one is so important. Take a look.
https://www.youtube.com/watch?v=4IXgOg5jlhQ