Lists, lists, lists and more lists.... for use during work and also personal bits

Can't rely on my mind nowadays (an age thing maybe!?) but thinking about it, I have always produced lists.
Grocery shopping, things to take on holiday, books I want to read and so on..................
I have each list under a separate major heading and relevant information is added to relevant list. It works well and is logical to the way my brain works.
Electronic lists have their place but I find that my paper lists can be updated at any time and I actually like writing something out rather than typing.