I've noticed a few patterns in my life now. Things that repeat themselves so often that they are practically rules.
1) If I see an outlandish item of clothing I like, I should buy it. There will always been an occasion in the future when it is exactly the thing I need.
2) When making an important decision, it shouldn't be based on a careful weighing up of the facts. Just think which option will allow you to meet more lovely girls or meet a specific lovely girl again. This is the result that will make you the most happy in the long run even if the thing with that specific girl never happens.
3) I need to have more than two ideas for rules to make it a proper list.