Financial experts typically recommend being careful how you allocate your money, lest you run out of it. But for billionaire Bill Gates, running out of money is the goal. The Microsoft co-founder announced this week that he’s donating $20 billion to the Bill & Melinda Gates Foundation, while reiterating his pledge to give away “virtually all of my wealth to the foundation” and eventually drop off the list of the world’s wealthiest people altogether. Gates announced his plans in a Twitter post on Wednesday, writing: “I have an obligation to return my resources to society in ways that have the greatest impact for ... (full story)