It's probably easier than you think -- and it's a great road to a comfier retirement.        

Tumblr CEO's mom gushes over billion-dollar baby Associated Press Copyright 2013 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 2:42 pm, Monday, May 20, 2013 A few years later, Karp built Tumblr — the wildly popular blogging forum — from his tiny childhood bedroom, hunched over his laptop with bags of Tostitos. While ...