Yeah man. Last year I decided to. I kind of got two diffrent things going on. I'll mark a "s" on my calender everything I get back from a session. If it's s named storm I'll throw that on there to. But I also keep an actual log. I started out doing it after every session also but I surf allot. It dosn't have to be good, I'll paddle out. So now I only do it on good or memorable days. I get pretty in depth though. I just bought a note book to write in. I include Date/time Tide time and the actual tide measurement Wind speed and direction Swell size, direction, and period Spot Board Then I give a description of the day. Describe any good rides or people I saw or whatever. Whatever I enjoyed about the session. My initial goal for doing this was to have as a reference for upcoming swells and what to expect. Thing is I don't really need it. I know my area and where to go without looking in a book. But it has been really cool to look back on. Much easier to remember those waves when you record them like that.