Do you have a Costco membership? If so, you're probably well aware of the bulk prices. But are you taking advantage of all ...

As a bespectacled American, I have spent many, many hours of my life in optical centers and ordering glasses and contacts.

The opticians employed by Costco Optical work independently of the store, which means your bill goes to them, not to Costco. Translation: Anyone can visit Costco’s optical center, membership or not!