I launched one. See all of the groupon deals in your town and others in one simple interface: http://www.groupongroupie.com/
I'm still working on a few kinks in the daily email list.
The daily inspirational emails from 21times really helped.
Ha! Since I 'discovered' this I've used it nearly daily in preparation for Christmas travels as well as gift shopping for friends around the country. I had a suspicion that you were a HN-er.
Whoah - a user. I've heard about you, but didn't know you existed.
Thanks for trying it out!
(and tell your friends).