A calm-down-quick pic: Try keeping a photo of a loved one in sight to help remind you not to get too worked up during your commute, says Nemerovski.
For the Glove Compartment
First aid kit: Put together your own that includes bandages, antiseptic wipes and ointment, and tweezers, or buy a preassembled kit, says safety and health expert Debra Holtzman of TheSafetyExpert.com. (Meds don't tend to do well in a hot car; keep 'em in your purse.)
Phone charger: For the inevitable low-battery bummer.
Map: Unlike GPS, paper never loses satellite connection.
Pen and pad: Especially handy if you need to leave a note on another car's windshield.
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Organizer: Morgenstern suggests using this clutter buster as a temporary place for errand-related stuff.
Car emergency kit: Though we hope you won't have to use it, a ready-for-anything kit is smart to stash. Some ideas: flashlight, blanket, paper towels, tire pressure gauge, tool kit, duct tape, and jumper cables.
Trash can: The doors' side pockets will not suffice, health-wise. Keep a trash bag or can handy for wrappers, and dump it out often.
This story originally appeared in the July/August 2016 issue of Dr. Oz The Good Life.