Cheap car rental near Houston airport gets you rolling fast, but Houston roads reward those who know the local flow. Out-of-towners often miss unwritten norms on lanes, feeders, and U-turns. Master these tips, and you will blend in safely from your first freeway merge to downtown.   Lane Discipline: Right Lane Rules Houston enforces "slower traffic keep right" strictly on multi-lane freeways. Drivers who drive airport car rental in Houston  should pass left briefly then slide