'How about we stop issuing government marriage certificates all together?'
I do not know if this could work. Couples that marry have children, earn money and that complicates the issue. What would happen with divorce? What happens to the children then? How would you decide who gets what?
In order for that to work, two adults would have to sign a contract between each other to marry. As strange as that sounds it may actually work better than marriage certificates. :)
'Peace is a powerful message.' Ron Paul