I do. I have most of my old passports (all of them since I was an adult). My wife also has all of hers (she might even have a childhood one). You are supposed

I do. I have most of my old passports (all of them since I was an adult). My wife also has all of hers (she might even have a childhood one). You are supposed to send them back on replacement, but both countries with whom I maintain passports return them to you in an "unusable" state (mutilated).