Some of you may not know what I’m talking about, while others have lived by this code for decades. It’s luxury to some, while others would never even entertain such an idea. What exactly am I talking about? Camping in a Walmart parking lot of course! Yup, did you know, most Walmarts allow you to sleep in their parking lots overnight?! That’s right, those RVs you see parked in the far corner of the parking lot aren’t there to buy groceries or a new TV. They are there to catch some shut-eye before they drive off on the next leg …