ive done a LOT of long distance road trips
i generally bring:
US atlas - Check
a bottle of water - Got plenty of those, and Dr Pepper
some snack type food to munch on (beef jerkey, starbursts, etc) - i'll get some of that on my way.
basic tool set - Check
air pump - Check
tire plug set - Check
tire pressure gauge (check tire pressure before leaving) - Check (they're brand new tires just installed tho)
zip ties
electrical tape
duct tape - might not be a bad idea
spare headlight bulb - hmmm...
3-D cell maglight (check batteries before leaving) - I do need to get some batts.
car charger for cell phone - don't have one, mine will last 3-4 days off the charger
jumper cables - i wonder where mine went...
depending on length ot trip - extra windsheild washer fluid (top it off before you leave) - it's topped off.
something for headaches (advil, tylenol, aleve, excedrine, etc) - I get migraines daily, so Check.
other things to check:
double check that your jack and lug wrench are in the car - in the back seat right now.
double check that your spare is up to pressure - check.
double check that you have the lock for your lugnuts (if you have one) - N/A
also make sure you have CDs or something to listen to with you (there are a LOT of areas of the country that dont have shit for radio stations) - 6 cd changer, plus one in the receiver and a case of 50 cds - Check.
My laptop is going with me as well.
WiFi FTW