I have served (mainly throgh attrition) as an Executor. When you decide whom to trust, make sure that, they and the alternate(s) are, at a minimum, your contemporaries in age-and ideally, younger than you. Consider getting a savings
bond that the Executor(s) can cash and use for inevitable
expenses. It's also more convenient if your Executor's
signatures are on safe deposit box register cards.

If there isn't a Wil, trust me-everyone, and every
conceivable government agency-will have their hand out.
This is especially true if you decide to go the cheap route-like,
say, not retaining an Attorney.

Another reason for Wills and burial instructions/policies:
Morticians love elaborate funerals. Especially when out-of-state relatives do not attend.

We all have stuff we value. If you have a collection or just one piece, make sure that someone knows what the value
is and where to go to get a good price.

My Great-Aunt was a collector of olde (spelling intentional) furniture and clocks. My Uncle retired from the Westclox Corp. They had clocks from the 1800's. Their collection-along with suites of real hand made furniture-Chippendale Armoires and the like-was sold for pennies on the dollar, because no one recognized it's value-except the buyers, that is.

One other thing you might think about: there are 'empty books'
available that you can fill wih details about your life. Modest?
Self-effacing? Sure. But it might be a treasured heirloom
for your descendants if you should have an early demise.
I never knew either of my Grandfathers and only one of my
Grandmothers. I wish I had.