Twitter is the entertainment. Some of us don’t even watch TV; instead, we watch our Twitter streams and still get the download. Twitter is the new Cliff Notes.
The Kindle is still a great way to read digital books. It lacks the full functionality of a Smartphone on purpose; less distractions enable more focused reading.
Keep Reminders digital and To-dos optional. Set automatic reminders on the phone or on the computer. Write to-dos in whatever screen works best. I typically keep a log of things I need to do in one document and scribe priorities on a sticky note. There’s something about writing out a to-do that makes it more actionable.