Related:

• APL -- A double-decker bus. Its takes rows and columns of passengers to the same place all at the same time.
  But, it drives only in reverse gear, and is instrumented in Greek....
• Double!
• Homer: A double cheeseburger, onion rings, large strawberry shake, and for God's sakes, hurry!
  Voice...
• A burger shy of a Happy Meal.
• Decker: "Of course...we all create God in our own image!" -- "ST:TMP", Stardate 1513.8.
• Picard Burger: No sesame seeds on the bun.
• Accountants do it with double entry.
• Bookkeepers do it with double entry.