Gods, how I manage mine has changed loads over the years lol I started out with a book of shadows, then it became a disk of shadows. Then i got a book again and kept bits in it. Over the years I've kept poems, great writing by fellow pagans who have inspired me, but other things like feathers, acorns, conkers very much part of my path are dotted all over the house
Now, I have a ringbinger full of folklore stuff, some of my magic is woven into the stories I write, but most of the magic of being alive is written in my blog because like magic and witchcraft it hits all extremes. There is no difference between my magical path and the one I walk every day, I cannot separate what is the same.
If I was to name it all, I couldn't because it's now all over the place, and yet, the Book of Life would be the best summary for me

That said, it really is fascinating to look back on how I was, and how I have changed, how I interact with my Gods and the long, long path that I eventually followed to find them having been waiting years for me. (Slow on the uptake you see

) I note the seasonal changes, the changes in the land, air, woods in my journal, I live, breathe, am this land here. To know it is to learn it, to feel it, understand it, and by recording things this helps me both learn, reflect and understand