Michael Hyatt on the importance of saying "no":
Every time I say “no” to something that is not important, I am saying “yes” to something that is.
Or put the other way, every time you say "yes" to something that you probably shouldn't you're effectively saying "no" to something you should.
Michael lists 5 reasons to say "no" more often in his article. I agree with all and I know I should say "no" more often. One of his reasons especially hit home: "Other peoples’ priorities will take precedence over ours." This has been happening way too often in my life lately. I feel it's time for a personal review.