I copied the info below from something I PM'd a tradganger a few months ago:
Have you given any thought to a Public Hunting Permit? It's only another $48 on top of a hunting license. Sam Houston National Forest is north of Houston so not too far away from you. I hunted there a few times during college. You may not see a ton of deer, but the hogs are thick.
I know for a fact that if you went town FM (farm to market) road 149 (on the west side of the forest) and then headed south on Forest Road 203 to the dead end...there is hog sign all over the place. The terrain is such that you could set up in a small chair in a thicket, a pop up blind, or even a climber since there are so many tall straight pine trees.