Do you have a bicycle pump in your car? Well, you should.
I can't count the number of times I've rode over a nail.
You can buy brand new tires, look out for bumps, pot holes, cracks and dips and speed bumps on the city streets all you want, but for some reason nails and screws somehow mysteriously and without explanation managed to penetrate the fabric of a tire.
It is a curse of this age. If you run over a nail straight into the tire along the flat surface where the tire meets the road, chances are it will go all the way in and instead of a blow out the tire will slowly leak. If you happen to run over one of these tire punching crappers, you will go in to work and get out at the end of your shift only to see the tire is about half way flat.
If you see this don't panic. Chances are, you had the foresight to keep a spare, that is a spare bicycle pump in the trunk. Just get it out and pump your low tire back up and drive it to the nearest tire shop. It's likely the tire will hold enough air to get you to where you need to go but then it is not safe to take the freeway with a leak and it's recommended you don't drive on a tire that has a nail in it. But hey. You are a few miles from home and it's gonna rain. You can drive slowly and have your emergency flashers on. When you go get the tire repaired you will need to make sure they not only plug the tire but also patch it from the inside. They sometimes pro-rate tires when new and allow you to pay a bit to get a new tire in exchange for the one with the flat.
One thing to add. If you drive on a flat tire you will ruin the rim and the tire will be trashed.
It is also possible that if you have to drive over any speed bumps, with a flat front tire or rear tire, you will be so low that you may even scrape your undercarriage on the speed bumps. Ouch!
Carrying a reliable bicycle pump in your car is as practical as wearing a hat in the summer.
Image Credit » https://pixabay.com/en/ford-automobile-car-classic-green-149784/ by OpenClipartVectors