In the early years, we faithfully recorded each and every stop with the trip number, date, time, place and the site number. Unfortunately, we did not record any thoughts or observations, and we deeply regret that. We do now though. Usually not much, just a page or two, takes only 5 minutes, but I can't tell you the pleasure it gives us to look back.
We keep our journal in a cupboard in the camper. We pull it out usually after dinner after having arrived somewhere and we take turns updating it. We include interesting things we did or saw, along with any particular markers in our life that will help us remember where we were in our "life's journey" at the time. We started including more information because we found ourselves wondering about these things when we looked back over our minimal entries from years past. Ideally, we would have pictures too, but we don't. We can, though, locate our digital photos easily by date to include if I ever get so ambitions in the future. I can't imagine how much work that would be because of the sheer number of trips we have been on, but it's fun to think about!