I'm not being shitty to you, property law is weird as shit. The "warranty deed" you're referring to is a transfer instrument, it's not a title. A deed is just a document that transfers ownership from one person to another. If you look at the "final" deed in your property's record, it will be a transfer from the previous owner to you. Also in the property records will be transfers from all the previous owners to the next owners, all the way back to the patent grant from the state back in the 1700's/1800's depending on what state you're in.
There are "warranty deeds", "quitclaim deeds", special warranty deeds, etc... they all have slightly different things they're transferring with different limits of liability on the transferor. But there is no document that you hold that you need to keep safe that guarantees you own the property. Your ownership of the property is in the property records filed with the county/state. It's good you're keeping documents safe, I'm just telling you that doesn't do what you might think it does.