If you want to do it, then by all means do it. Otherwise, don't get stuck doing something that you will have to continue for a super long time- it will get old- fast!
I do a notebook that does a little summary of our day and what the kids ate, when they slept, etc- I have been doing this since they were 15 months old (twins) and I still do it now that they are 3- and I am pretty tired of it lol
