Does it matter?

Does my "smaller" sin give me a license to pick on my husband's "bigger" sin?  Shouldn't I look at my own life?  Shouldn't I mind my own business?  Don't I have enough things to work on in my walk with God?  Usually, if I find myself picking on my husband's flaws, it is because I think I have all of my own figured out.  Bad thought.  Didn't somebody say that the moment you think you've arrived, is the moment you start to slide back (or backslide)?