When Susan Combs was growing up on her family’s West Texas ranch, conserving water was part of everyday life: If the windmill wasn’t turning and the storage tank at least half full, the household plumbing was turned off - even the toilets. In her political career, Combs has been urging Texans to save water for years, first as a lawmaker, then as agriculture commissioner and now as state comptroller. After the worst one-year drought in state history, people finally seem to be listening.