Billionaires are known for throwing their money at super yachts, oceanside mansions, and luxury cars—but some still carry their thrifty habits made before reaching 10-figure net worths. Bill Ackman, the Pershing Square Capital founder worth $8.4 billion, still lives by his family’s money philosophy long after reaching the ultra-rich list.
“I don’t like wasting money,” Ackman recently told the WSJ. “Dad was very big on not wasting things. If I left my light on in my room, he’d get really upset. Now I go around the house turning off every light.”
