Put your best foot forward.That was lesson number one: show your absolute best work. If you're showing one story you like and one story that needs work and one story that you know is weak but you need a third story, you're not ready to submit. Agents see hundreds of pieces a week, and they need to know that you have more than one good story behind you. So edit, polish, and edit again. Show your absolute best work; don't hold anything in abeyance, because if you do, you'll never get the chance to show that piece that you've been saving that you think is your best.