Physical To Do Lists or App/Computer To Do Lists?

[luckyme]

How do you keep track of all of your To Do List items?

I recently took a course on personal productivity and the instructors provided some great examples of physical options to post on walls or fridges (at home). I have a whiteboard at the office where I list all of the projects I've been assigned to work on - but I don't use it as a To Do List (or at least not consistently).

Mostly, my work To Do's are in a colour-coded calendar in Outlook.

At home, my To Do's are in a colour-coded calendar in Google Calendars.

I'm pretty consistent, haha!

So, do you use a whiteboard, magnetic to to list, notebook, or some other physical way of tracking what you need to do? Or do you use a computer program or app? Curious minds want to know!