The caffeine in coffee energizes you for a while but it soon goes away leaving you almost sluggish. If there are two drivers switching will help along with frequently stopping. Tiny bladders mean more frequent urinations and hence more stops to go to the bathroom which in turn leads to less incidence of thoroughfare fatigue.The road rage usually stems from the lack of sleep plus the exhaustion and the trying to keep kids entertained in the backseat. Exercise patience it will be worth it. Use your signals, let faster drivers pass and don't tailgate. More people would love spending time on the roads if only they got along. Hopefully you picked up enough useful tips here for your summer road trip to make it truly memorable.