The USPS effed me again the other day. Three chips wrapped in cereal box cardboard in a regular business envelope should ship for a stamp or two. Usually does. But the lady the other day wouldn't do it - forced me to pay the $3.whatever that a padded mailer would cost. I'm not even gonna try shipping that way any more. Everything goes in a padded mailer for $3-$4. Makes selling a single chip pretty hard.