Hey, I recently made a hunter character which I like to roleplay on, I play on the 360 version. I'd love to keep a journal in game or even just have some notes of places I've been, animals I've killed, undiscovered locations etc. Due to not having any kind of item we can use to scribe on or keep notes I just make a word document or a document of Google Docs which I save and that I can go back to whenever I need. I also have the Skyrim font downloaded on my PC (which can't run Skyrim) that I use for my journals. I find keeping this "journal" adds more of an immersive feeling to the console versions making it as much like the immersive PC mods but on console.
I heard that in the remastered version coming out in October, they might have some kind of mod just like the "Take Notes" mod on the PC which allows you to keep a journal.
I already have about 8 days written out in my Word Document journal, I also have a journal for my bounty hunter character, which I wish we could get a mod or something like the PC version which you can actually hunt individual people, but on console I either make up my own contracts with a story of how they got the bounty or I stick with the classic bandit bounties.
I'll show you my first entry of the hunter journal which may give you some ideas of how you might start something like this.
Turdas, 4th of Hearthfire, 4E 201
I have been let out of Helgen after being caught after trying to cross the border from Cyrodiil to Skyrim. They let me out with my hunting gear at least. After the Great War, most of the stags and game fled to the other countries while most of then went to Skyrim, the reason I'm here.I should head over to Riverwood, a small village near Helgen. There, I should gather some simple supplies like food and water, no mead tonight although I deserve one. I'm going to rent a room at the inn and stay the night, hopefully I'll be able to catch a good ole stag and have that for supper.
There's a lot more to it than that but I didn't want to bore you. After that small entry finished I did exactly what my journal said I'd do, bagged some game and slept at the inn again, the next morning I travelled to Whiterun and sold off some pelts I collected along the way.
Be sure to post some things that you were doing or even discuss the journal idea a little further. I'll make sure to reply to as many people as I can.