This story, authored by Jeff Haden , was originally published by Inc. ------------------------------------------------------------------------ Happiness—in your business life and your personal life—is often a matter of subtraction, not addition. Consider, for example, what happens when you stop doing the following 10 things: 1. Blaming. People make mistakes. Employees don't meet your expectations. Vendors don't deliver on time. So you blame them for your problems. But you're also to blame. Maybe you didn't provide enough training. Maybe you didn't build in enough of a buffer. Maybe you asked too much, too soon. Taking responsibility when things go wrong instead of blaming others isn't masochistic, it's empowering—because then you focus on doing things better or smarter next time. And when you get better or smarter, you also get happier. 2. Impressing. No one likes you for your clothes, your car, your possessions, your title, or your accomplishments. Those a...