From Greg McKeown’s Essentialism:
“As you evaluate an option, think about the single most important criterion for that decision, and then simply give each option a score between 0 and 100. If you rate it lower than 90 percent, then automatically change the rating to 0 and simply reject it. This way you avoid getting caught up in indecision, or worse, getting stuck with the 60s or 70s.
Think about how you’d feel if you scored 65 on some test. Why would you deliberately choose to feel that way about an important choice in your life?”