The Agnostic Atheism Wager was written in response to Pascal's Wager.
Whether or not you believe in God, you should live your life with love, kindness, compassion, mercy and tolerance while trying to make the world a better place. If there is no God, you have lost nothing and will have made a positive impact on those around you. If there is a benevolent God reviewing your life, you will be judged on your actions and not just on your ability to blindly believe, when there is a significant lack of evidence of any one god's existence.
It is often expanded upon to state that a God that would judge against a good person purely on the basis on not believing in him or worshipping him, would not be a God worth staying in Heaven with.
Taken from: http://rationalwiki.com/wiki/Agnostic_Atheism%27s_Wager