My on the road kit.

 

If I'm going on a road trip then I always have my car bag with me. 

My car bag is a random purse or my small tan suitcase that has everything I'll need when in the car.

~ Fluffy socks : I usually have two pairs to wear in the car and for an extra pair.

~ MP3 player : I always listen to music, it calms my nerves and I'm usually less anxious. 

~ Charging cords : For my phone and MP3 player as well as the cordless speaker.

~ Brush and hair ties & clips : most time's I'm not the only one who needs a random hair tie so I tend to have a lot on hand.

~ Journal and pens : I enjoy jotting down about places we visit and some history of the locations so that I can blog about it.  Also doing this helps me to research it later.

~ Supplements and aspirin :  I usually have enough aspirin for an entire army in my bag. OK actually it depends on how many people are on said road trip. 

~ Cosmetics :  Most of the cosmetics are kept in my road kit, I pretty much only keep mascara, eyeliner and lip stick, gloss and balm in my purse.

~ Hand sanitizer : I am a hand sanitizer hoarder, I have at least 3 medium sized bottles in my kit because I use so much of it. 

~ Reusable straws : I always have straws in my purse and have more in my kit. I prefer those to the disposable ones.

~ Ziploc bags in all sizes : These are great for wet swim wear and for keeping toiletries in. I keep a lot of things in zip lock bags in the bags, easier to see what's in them. 

For snacks, I usually mix stuff together.. 

Goldfish trail mix consists of 2 bags of goldfish crackers..
Multicolored, pizza flavored or whatever random flavors catch my interest at the time. 
Then I buy a bag of trail mix, without the chocolate. 
I combine all of them in a bowl and sort them into zip lock bags and tuck those in my bag.

I also buy boxes of Crystal Light water flavoring in random flavors.
I always bring a reusable water bottle with me and fill it up at rest stops or where ever we end up.