Using Microsoft's To Do Manager, either with the Smartphone App or via the Web App in your browser, is a slick and powerful way of creating and managing To Do Lists and Tasks.
This site contains some useful tips that you may not already know about and, hopefully, will help you get the most out of using a cross platform application to get yourself organised.
Go to this site where you'll find download links and supporting information.
Some shortcuts give different results depending upon if they are run within the To Do App or the Web App in Chrome / Chromium under different OS's.
You'll need to check out your own particular usage and see what happens.
Most of the important actions in the App are supported :-
Ctrl + R : Sync - very handy and works well :-))
Ctrl + N : Add a new task
Ctrl + L : Create a new list
Ctrl + T : Add a task to My Day
Ctrl + D : Complete a task
Ctrl + F : Search
Ctrl + 1 : Open the sidebar
N.B.
Microsoft acquired the Wunderlist App in 2015 together with some of the original developers. Together they are merging the best functionality into the To Do App.
Microsoft made an announcement about improvements to To-Do with the demise of Wunderlist in May 2020
Click here for an EndGadget article that goes into the details.