We went to the Wine Festival in Granbury, Texas. If you have never been to one, this is definitely a must see. The little town itself is awesome, with a great atmosphere that makes it fun to just walk around and explore. The festival was not that expensive, and with the ticket you get a glass to take home, which makes for a nice keepsake.
It was one of those outings that felt easy and enjoyable, and I would go again without hesitation.