Step 1: Go to a drive through. Step 2: Say "I'm sorry but I'm blind. Can you read the menu to me"? Step 3: See how long they'll read before realizing you can't drive if you're blind.
Marriage tip: Every once in a while, call your wife by one of your ex-girlfriend's names. This will help her realize that she is not the only woman on the docket, and that you're a really good catch!