For just normal driving in city and local country we carry somethings year round. Wool blankets, flashlight, paper towels, TP, paracord, first aid kit, towels, water, jumper cables, tarp (something to kneel on for chaining up or changing tires in rain).
We carry one set of chains at all times during possible snow so roughly November to April. Both sets go in for trips. Food on trips as well in case we get stuck. There is an adjustable crescent wrench and a multi-tip screwdriver in the seat pocket. Small bottle of vinegar to clean windows.
We have a resistor type vehicle jumper as well. If the light still come on, it can get enough juice built up to start the vehicle. It's truely an emergency item.
Hubby has his electric car blanket in winter for if he gets to work too early.
There is a T-shirt for each of us in a plastic bag under the seat with the blankets as well. THAT gets used fairly regularly by hubby if he spills something on himself.
There are actually 2 bigger flashlights in the truck. One is an emergency one with the batteries in a bag with it. Never leave them in if you're not using it regularly. The other sits on the rarely used parking brake. Hubby likes to use it in the mornings or evenings to find deer and elk in our field.
There are glass wipes, glucose tablets, painkillers, and antacids in the glove box. We use those regularly enough. We've had hand sanitizer in there for almost 2 decades because adult humans are disgusting creatures in winter and I can't take the risk. Some emergency feminine products as well.
I carry all that and more in my purse as well. I have tweezers and nail clippers as well as banaids. I have a cell phone battery backup in there that will charge my phone from the teens at least 6 times. It gets used during power outages so it stays good through use and recharging. Hard candy is carried more for low blood sugars. Lighter and my pocket knife. Packet of soap paper for those restrooms without. Tissues, which have been used as emergency TP when out in town.
So we're probably ok with most emergencies when out and about.