Structured thinking.
FRAMING IT
"I am deciding between [options]. My situation: [constraints and context]. What would have to be true for each to be the right choice?"
THE KEY QUESTION
"What would have to be true for this to be the wrong decision?"
WHAT YOU ARE MISSING
"What am I probably not considering here?"
WHAT YOU ARE AVOIDING
"What am I probably avoiding thinking about?"
COMPARING PROPERLY
"Compare these options on [my criteria]. State trade-offs rather than declaring a winner. Details: [supply real information]."
WHAT YOU WOULD NEED TO KNOW
"What information would change this decision? How could I get it?"
AFTER DECIDING
"I have decided [what]. What should I watch for that would tell me this was wrong?"
WHAT IT CANNOT DO
Decide, know what you want, or bear the consequence.