Planning a road trip? If so, you probably have your route and hotels all set and a playlist of your favorite sing-along songs ready to go. However, if you're looking to level up the experience — and dramatically reduce what the trip costs at the pump, at rest stops, and at roadside restaurants — it's a good idea to hit Costco, both before you head out and strategically during the drive itself. The Costco road trip strategy is one of the most underutilized member benefits in t