Three Things Today | tyler.io:
So what is Three Things? Well, it’s a calendar that lets you schedule tasks on each day. It’s meant to be excruciatingly pragmatic and realistic about how life works. (At least my life.) It literally will not allow you to schedule more than three tasks per day.
This is a nifty little application. Pick three things. Do them. If you don’t, defer them. That’s about it. I like it.