I hardly ever use notes. The only time I use notes is if I find a true fish. I put FISH down and when I feel like easy money, I find where that guy is sitting. It is my belief that notes are vastly overrated though. If you are playing good competition, they will change gears so to speak. If I were to take notes on anything though it would be betting patterns. For instance: Does he always bet 2.00 in a .25 .50 stakes game when he is bluffing
? But mostly, I think that you really have to go by feel. If you know you are beaten, then you probably are. However, this is just my opinion. Others have found a lot of success using notes, I'm not one of them.