I always carry a kit with plugs and a "heavy built" hand tire pump. Many a time I've plugged a flat as soon as I noticed the tire losing air. Then pumped it back up and continued to where I could get it patched from the inside with a 2way patch.
I've learned that if the tire is half way through it's tread it's
about as cheap to buy a new tire at a discount tire place and keep my old one. (buy a small 2way patch kit
and patch it myself.
On my Van the spare is mounted high on the Left rear door with a cover over it. I had a door ladder on the right side and once I lashed the old repaired tire on the ladder with pieces of rope till I got home.
I have one buddy who is a firm believer in a product called "Slime" (pale green stuff) He slimes every tire he owns. Boat trailer tires, kids bicycles, and you name it. Says he never really has tire problems now from nails
etc.
Anyone here use Slime ?