For the First Time EVER....

I have been invited to an ugly sweater Christmas party!

Does anyone know where I  can find a good sweater?

Editor's sidenote:  these parties slowly but surely became THE RAGE.  Faster than ugly sweaters became the rage 15 years ago.  There are more ugly sweater parties than there are ugly sweaters.  I appreciate a good ugly sweater (and a party to accommodate it) as much as the next folk, but why did these become SO POPULAR?   Anyone?  Your thoughts?