I’ve said this from the start of The Blank Screen:

If you have a phone that can run a To Do app, get a To Do app

and

If you haven’t got a phone that can run a To Do app, get a phone that can

The reason is that you need your list with you everywhere and Post-It notes can’t cut it. It’s possible to lose them, it’s impossible not to end up with dozens of the wretched things.

Whereas a phone is part of you and moreover, any task you enter on that phone should then be everywhere. It depends on the app and the phone but, for instance, I’ll dictate a To Do task into my iPhone while I drive and know – know – that it is immediately on my office Mac and immediately on my iPad.

What I’ve been adding in lately is a list of specific recommendations. I can’t recommend phones, I know nothing about Android and if I said an iPhone 5something then you know the iPhone 6 would come out immediately.

But software, I can recommend.

Google any one of the following to find every possible detail plus oodles of reviews – plus in most cases, YouTube videos showing them in action.

For iPhone users

OmniFocus
Reminders (Apple’s own, you’ve already got this)
Appigo Todo
Clear
Wunderlist

For Android users

Any.do
Wunderlist
Todoist

Windows Phone

Sorry, I truly have no clue here and it is not for want of trying. You’ll be astonished how many Windows Phone articles there are about productivity apps which explicitly say they feature To Do software but then don’t. If you know a great Windows Phone To Do task manager, would you tip me off, please? I’m on wg@williamgallagher.com