In a still-shaky economy, saying no can feel dangerous. We're told by career counselors and mentors to be positive, and what's more negative than the big N-O?
After a few years of building our careers, many of us learn to be fairly accommodating, in order to get along with our colleagues -- and bosses. The problem with learning to say yes, readily, is that it becomes hard to say no when you have to. And if you can't say no, you sometimes can't advance your career to the next level.