Really successful people get a lot of offers to say "no" to. It was probably Derek Sivers, whom is mentioned elsewhere in this thread, that said: Early in your

Really successful people get a lot of offers to say "no" to. It was probably Derek Sivers, whom is mentioned elsewhere in this thread, that said: Early in your career, or when just starting something new - say "yes" to everything. You are collecting opportunities. Later once you have found or reached a sustainable level - then you can say "no" to everything.