I'll be in Austin tomorrow for business, staying until Saturday. The only times I've been to Texas consist solely of passing through it - connecting flights in Dallas Ft. Worth or driving straight through the top of it without stopping. And I gather Austin is special - everyone I know who's been there has said, "Oh, you'll love Austin! Austin is great!"
So while I don't have a lot of non-business time to spend there, I'd love to hear recommendations for things I shouldn't miss. My free time will be in the evenings, for the most part. I'll be staying in the area around the airport, but I will have a rental car.