Having paperwork such as powers of attorney and wills completed can make life a lot easier in case of a sudden death, as Chanel Reynolds discovered when her husband died after being hit by a car while bicycling. Reynolds and her late husband, Jose Hernando, didn't have their paperwork in place.
As a recent Times article recounted, Reynolds went on to start a web site to help people get their (paperwork) act together: Get Your Shit Together!, a title the Times eye-rollingly refused to print. (The Public Editor has addressed this issue.)
Anyway, if you don't have good records of your critical financial information (account numbers, beneficiaries, branch locations; life insurance policies; mortgage; etc), if you don't have a will, if you don't have powers of attorney for financial and medical issues, visit Get Your Shit Together! and start, uh, getting your shit together.