About a year ago I picked up The 4-Hour Workweek, a book by Tim Ferris. I actually saw Tim give a presentation at WordCamp San Francisco last year, but never got a chance to talk to him. There are a few main concepts in the 4-Hour Workweek that I think Tim spells out in a lot of detail. The first concept is the importance of residual income. That is, money that you (as a person or a company) don't have to fight for each and every month. That may be the sale of an eBook from your website, or some photos that you sell on the side, but ultimately he stresses how important it is for most people to ...