We all just want to smell fresh :) I can't really give anytips on the BO just yet because I haven't found anything that's worked for me. For my breath I use Peroxyl by Colgate. It's recommended for people with braces because it removes the bad germs but keeps the good ones. I've noticed a difference. You might want to give it a try.
p.s. When I was using Listerine and ACT it seemed like it made my breath worse!