Advice from the people who live it...
"You always want to show up early for an interview!"
"Spell check emails before sending and be mindful of word choice!"
-Briana Arlene @BriTweets
"Always send a thank you follow up, even if you don't get the job."
Don't bad mouth your current or previous employer! Keep it professional.
"State your name when you answer the phone. "Hello this is _______"
"Engage in the conversation. Show interest by asking the interviewer questions about the position."