There are many tools for decision support. I usually create a list of all options, decide on 3-5 criteria, then rate the options and voila out roles the best option. I may sleep over it, and the next day decide for another option, but at least it is a rational choice.

A complex table based on a coin toss, a 76 sided dice roll, and the direction of the wind.

Honestly one of the biggest questions for me cuz I can never decide anything. Even looking at this post because of some OCD-esque numeric ritual.