Extra Principal Payment on the Mortgage

Today, for the first time in almost 2.5 years, I made a payment on my mortgage that had an extra $141 towards principal!  I have been wishing and hoping that I could put extra payments on my mortgage for some time now.  It meant more to me than paying off my last student loan.   I have not felt such elation in a long time.  I know it's not much and that I still have a long way to go, but it felt good.