All rules were invented by human beings, therefore there are no rules.
Accepting that there are no rules but your own and that, unless you’re harming others or directly breaking the law, you can get away with far more than you assume. Most rules are social precepts that depend on psychological control of other humans, not cosmic law.
This doesn’t mean that you should wantonly break the law; quite the opposite. You should work to understand the laws that surround your life—both written and assumed—so that you can best understand how to navigate and circumvent them. Just because another human being “says so,” doesn’t mean you have to comply.