Planning on driving alone from LA to Chicago with stops in Vegas, Phoenix, Denver, and Des Moines. Think I-10>I-15>SR 93> SR 60> I-40 >I-80. Any tips on planning would be helpful. Also, what are the open flame laws on the big stretches between Phoenix & Denver and Denver & Des Moines? And any tips on educating family members of the real, not imagined dangers of this trip?