BURIED!!! Using To Do Lists to manage tasks

It seems absolutely impossible to keep up with it all.  Family demands, company demands, customer demands--how to keep it all under control is a huge issue today.  And, despite having dozens of things to remember, if you forget ONE thing, that's what everyone gets mad at you for.  But there's no excuse for forgetting anything these days.
So I'm going to tell you what I do.  First thing is that I always have a notebook.  And all my notebooks have integrated pen loops with pens inserted.  (Notebooks aren't much good without a pen.) 
I also have a Samsung Note 8 cell phone which allows me to make quick notes when I don't have my notebook.   Siri and Google Assistant are also very good at setting reminders if you're traveling or driving.  (You have to get over being self conscious talking to your phone.)
But notes and reminders aren't much good if you don't use them. 
There are excellent ToDo apps for cell phones and tablets.  My favorites are "ToDoIst" (todoist.com) and "Wunderlist" (wunderlist.com). 
The problem is that you may have a todo list, but it's not constantly visible. ("Oh, Ed, I'm sorry, I forgot--it's on my todo list, but I didn't look at it today.")  I've solved this problem by setting up my cell phone todo app as a "Widget".  Setting up your todo list as a widget on your cell phone home screen means that when you unlock your phone, your todo list is the first thing you see.  Android phones and iPhones have different ways to set up a widget.  So you need to Google "how to set up a widget on an _____ phone" and follow the instructions.  (A "widget" is a little piece of software code on your phone that allows the phone to display an app on your home screen.  The display can be made to take up your whole screen or a part of it.  My todo list takes up my whole home screen.)
I can't tell you how many times I have heard--"sorry, I forgot".  There's no excuse for forgetting in this age of memory apps.  I hate it when I'm the one who has to remind the supplier--"hey, where's my quote".  There's no excuse. 

Write it down on paper; ask Siri or Google Assistant to remind you; type it into Todoist, or Wunderlist, make your todo list a widget on your phone.
And stop making excuses--darn it.