1. Least Worst
    Imagine the worst possible outcome for each option and pick the one with a less upsetting worst case.
  2. Flip a coin
    ...and tell yourself you have to abide by the outcome. If you feel relief when the coin lands, go with that option. If you feel anxiety, strongly consider the other option.
  3. Pro vs. Con list.
    It's a classic for a reason.
  4. Obsess about the decision for months
    ... and then just get up one day and choose because you're sick of thinking about it.