Pick an evening for dinner/Movies/drinking/dancing or whatever your pleasure. Then drive to Ft. Worth. Once in or around Sundance Square park your car. There is more to do there than you will have time to do.
Of course you could always hit Billy Bobs in the afternoon, for Lunch/Dinner. Kids are often there until like 9pm or something. You can even see their indoor rodeo.
There is another place that is dear to my heart.....Hooters Arlington Free beer and lots of eye candy.