50KalDon't wait til your gas tank is on E to fill up. Fill up when the price is low or you quarter tank. Some times that next gas station might be out of gas.
I always did the fill up on half a tank thing. Don't want to get fucked by running out of gas (especially in the western states) and its usually at the right time where I want to get out and stretch.
killabeeswatch out for animals. rest stops are cheaper than hotels. if you drive straight you can be there without stopping (minus gas)
Why would anyone want to drive straight from NJ to CO, if that's even possible by yourself? Sounds like a good way to wrap you car around a light pole or end up in a ditch.