IMO, a fisherman can be his own worst enemy simply by not following a strategy. I started using a log a few years ago to track when I changed patterns/sizes/etc. while on the water. It helped IMMENSELY as I realized I was making moves that were illogical at best, downright stupid at worst. Most fisherman agree that fishing the same thing for hours without success is the definition of insanity, but the changes that you decide to make should be as intentional and objective as possible for how you're reading the water and other conditions.
