I used to hafta do a lotta travelin for work and when you're in a 3rd world country for a few weeks ya gotta do somethin' so when I traveled I kept a travel journal of where I went, what I did, how I felt, then when I got home my family could read it.
Also I write, a lot, I write songs, stories, poems, quotes, ideas I have or things I need to address or do.
I have pads, papers, envelopes, napkins, even the borders of newspapers with my thoughts and ideas, my poor wife can't throw out anything that has my writin' on it, even if it's on an evnvelope that's 30 years old, (I have some poems I started 30 years ago and have just recently finished them.
There's nuthin' wrong with a journal, just keep in mind that eventually some one else will read it,