River makes a great point. Do all you can to make things a little easier on those left to take care of the details.
After DH passed away unexpectedly I got a crash course in "final arrangements". I wasn't ready for it......and didn't do well. Four years later when both parents passed away I got a refresher course.

Then three years after that my sister passed. I'm getting experienced in this now......and still don't like it.
I've made my Will. Made DS's my POA's. Made all my final wishes known...in writing...and made it legal. I want to be cremated. DS's don't want to talk about it which I can understand. So, I did the work for them before I go.
This way, I get to have the last word.
One thing most folks don't think about is what happens to your bank accounts when you die. I want my sons to have access to them. Not now.....but when I die. I don't want them to have to wait and go through lots of red tape just to get what's theirs. So I took care of that with the bank. It was easy and, as I found out, very commonplace.
The more you do
now to make sure your wishes are carried out
then....the better you'll feel. An unexpected death is hard enough to deal with without having to make critical decisions at a time when your brain isn't prepared for it.