Gates is famous for his philanthropy but also for his down-to-earth quirks. He wears a $10 Casio watch, owns a McDonald's Gold Card that grants him free Big Macs anywhere in the world and has no interest in flaunting his wealth with flashy cars or designer suits. But while he's no stranger to frugality, Gates knows when to open his wallet – whether it's for private jets, sprawling real estate or even paying fines for improperly placed manure bins at his daughter Jennifer's $8.7 million horse farm in Florida. This manure-related mishap cost Gates $42,000 in fines but was all part of supporting Jennifer's equestrian ambitions. According to a 2014 Page Six article, when Jennifer was just 15, Gates purchased the Wellington, Florida, farm in the heart of the equestrian world. The estate featured stables for 20 horses, training facilities and easy access to the Winter Equestrian Festival. However, even billionaires can't escape local regulations. Gates was fined $250 a day for violating a...