A riff on Nords's tune: I would be cautious about paying off the house all at once. How about making double mortgage payments. It will knock down the principal at a nice rate that you can track, you can be pleased about the interest you will be saving, and you can always go back to regular payments if you think of something better to do with your cash.
Now as for boredom: you've probably noticed that topic has been done to death also,
but nobody seems to get tired of discussing it
which is why one of the most popular threads is "What did you do today?"
...I hear the cars calling you...beep beep...you miss us, cardude...you know you do...beeeeeep....