Oh, I have letters from people I don't care for; I've kept them to remind me WHY I should still be angry at them. And I doubt that I am alone in this.
you might not be alone, but to say that most people hang onto letters is simply false. Some do and some don't and I'm betting most don't. I for one didn't hang onto to any ex boyfriend letters when I got married. Most newly weds don't really like it when their new spouse is hanging onto to ex husbands/wives/boyfriend/girlfriend letters.