It would be nice to think that God looks at our lives and is keeping score between our good acts and those that are not.
Do more good than bad and you get an automatic “get into heaven free” card. But in the Christian faith your assurance of eternal life is much easier. According to the Bible, no matter how good or bad you are or have been, getting into heaven only requires an acceptance of Jesus Christ as Lord and Savior. It is as simple as that!

As it is written:
There is no one righteous, not even one; there is no one who understands; there is no one who seeks God. All have turned away, they have together become worthless; there is no one who does good, Not even one.

Romans 3:10-12 (NIV)