How to Say No, Even If It Makes You Really Uncomfortable

Why is saying no so hard? Maybe you have the incessant need to please people a la Monica Geller in Friends, or maybe you're just too scared. Either way, by saying yes to everything, you might be stretching yourself too thin and taking on more than you can actually handle. Even if you aren't dropping the ball yet, continuing with the "never say no" rule could hurt your career.