Digital books are a good start to bet the information you want down. And the best part about them is you can organize and re organize to your hearts content a lot easier.
Getting a small, classic black and white school notebook they sell at grocery stores and like a Wal-Mart. Or any composit notebook. Those are subtle and a way to write things down if you would prefer something physical.
Binders! You can say it’s a scrap book like I do or some sort of art project.
Don’t immediately say no to small spiral notebooks either. They are easy to hide and aren’t that obvious either.
I’m sure my followers have tips too haha
fair--y backup 