I've never been to a Texas beach, so I'm clueless. I mentioned the possibility of going to South Padre to DH after seeing the recs on Rach03K's post, and he suggested Galveston or North Padre Island instead. He hasn't been to a TX beach in 20 years...
We're looking for low key, clean beaches, a rental house within walking distance of the beach that isn't crazy expensive, and small local places to eat. I don't want to spend 10 hours in the car driving there.