Where does everyone buy their minnows,frozen bait and worms etc? 

Minnows are available at the Marina on the east side of the McKay Bridge.
Worms are available at both stores on Hamblen Road. The store nearest the tracks on the south side of Hamblen carries frozen shrimp and livers.

We buy fresh chicken livers at any of the grocery stores in Kingwood 

You would think with all the water in area someone would have live bait a bit closer than lake Houston. Guess I need catch my own in river. But ty for info on words and shrimp.