Right along the Mexican border is the comfortable little city of Eagle Pass. I've been a resident here for about two years now and it's an enjoyable place to live. There's a lot of things to do here, even though it's a little far away from any big cities. The best area in Eagle Pass is probably the Mall De Las Aguilas. There's plenty of stores you can do all your shopping at, including a big Walmart.
It's hot but not too hot in the summer and there's usually little festivals and farmers markets you can attend on the weekend. You can also try checking out places like the Fort Duncan Museum or even crossing over into Mexico to spend an afternoon visiting the neighboring town. Owning a home isn't too expensive either, which helps because the area doesn't have the best opportunities when it comes to finding a job. It's a good choice for a city if you don't mind a quieter lifestyle.