I don't care how old, young, healthy, or sick you are - have a damn will and update it on a regular basis. Do not trust others to carry out your wants and desires after you are gone.
And, here I am, saying this without a will in place. However, every thing,of significance, that is in my name has a beneficiary named. I know I need to do better than that, and I will, very soon. Your time here is precious.
That is all. I really can't go into anything deeper than that at the moment.