How do you store your pen pal letters?

Since the mail hasn't come yet and I'll be gone over the weekend I thought that I would share how I store my pen pal letters and see if anyone stores their's the same way or differently~

First off, I save the envelope and the letter, when I told my mom this she asked me why I saved the envelope D: Many of them are cute :3 to be honest, some have landscape pictures of their country, some of my pen pals decorate their envelopes, so why would I not want to save them??

I store my pen pal letters in a 3 drawer storage file, with clear inserts. Though I only use the middle level for my letters, the other 2 store supplies~

I've started to write when I receive my letters and when I send them out which is what the white pieces of paper are that are folded over. But for now they are only being used for pen pals in which i have 3 or more letters with. 

I keep this at my desk :3 so I always see it when I walk into my room, and sometimes when I feel down, I'll read through them :)

If anyone is interested in the incoming/outgoing date trackers I can put them up in another post!