YourHumbleNarrator

I believe relativity is the most rational moral system on a macro level and on a personal level I hold to principles I will not break. In other words there is no divine law, no supernatural court of appeals, no karma beyond simple cause and effect. It's up to each individual to define their own morality. (As they're going to do anyways. It's that inherent contradiction within appeals to divine law that causes me to reject the absolutist mindset.)

To me, "Do as thou wilt" isn't a license to live like life's a free-for-all blood orgy, but an admonishment... Nay, a mandate, to explore yourself and determine what's truly important to you. I feel that relativism without a strong set of principles leads inevitably to nihilism, and so too does following a moral code that doesn't resonate with you.
I've never come across a description of morality so close to my own =D