Billionaire Hollywood mogul David Geffen announced another large philanthropic gift this week—one that could fully cement him as the most narcissistic and least useful philanthropist in America.

If you're going to donate a few bucks to charity this holiday season, you can make those bucks do the maximum possible good by donating to these four charities.

I met Roger Blondell around 2 p.m. on a Thursday afternoon in early July. A tall chubby black man, Blondell was dressed in worn-in jeans and a shirt that looked like he'd had it on for a few days. Still, he didn't seem quite homeless. We were standing on the corner of 24th Street, at 7th Avenue, across from Whole Foods. "Can you spare some change?" he asked.

Sure, Madonna created a whole (possibly shady) charity to raise money for schools in Malawi, but do you know how she raises money for daughter Lourdes Leon's schooling? By selling her old Chanel boots.

Click to viewHundreds of kids in New York City think that Santa Claus lives on West 22nd Street. He does not (he lives in the North Pole, duh)—these two guys do. But after receiving 450 letters, they're helping out anyway.