The very best breath freshener on the market, in my opinion, is BreathAsure TM . Swallow three or four gel caps after eating along with a big glass of water. They should prevent you from having a breath problem regardless of what you have eaten, and you won't reek of mint. The key to wearing the right interview attire is to dress like the successful professional you intend for them to hire. Don't allow anything in your clothing or cosmetics to distract the interviewer's attention.
Simplicity is the best look.
You want to have everyone you meet focus on your face and your skills. They won't do that if your appearance is off. If you are unsure about your ability to select the best clothing for yourself, ask for help. Retail salespeople and personal store-shoppers provide their services free of charge, so take advantage of them. Try to select a person who dresses well.