Gold bars can strengthen your portfolio — but requirements often make buying complex. Here's how to buy bars now.

Did you know you can buy gold at Costco? It's true. Costco began selling one-ounce gold bars last year and now members of the warehouse club can purchase silver coins as well. Deciding to add gold ...

That has led even more investors to weigh their gold investing options. While there are numerous ways to invest in gold, ...