Tire warranty and Perssimon

So, I got brand new tires for my car. After the installation, my mechanic hands me the key, the receipts and the warranty card for my tires. “Keep these safe, you are covered for 1 year” hesay s. I have been in this situation many times before. I dont really know where to store this random piece of paper. I used to have a file named “car records”. After bloating into this unshapely monstrosity, I just shred everything when we moved into our house.