Quick survey just out of interest - It took me 6months from getting my HRM in January to actually using it properly now! I wore it on all my runs, long and short, speed sessions and so on. I set my zones before each exercise and looked at it often. However, I had set a target of around 75% for my long runs - that went out the window within a short period of time, continuing at 85-90%WHR for the whole 15miles. And even on speed sessions, my session was controlled by the speed on the treadmill as a pose to my HR. I only started actually using it properly on Wednesday after having come back from a long period of injury. I'm actually staying religiously within my target zone of 60-70%WHR to attain an aerobic workout. I'm slowing down to prevent my HR going over 70%, even walking in some instances to keep it under control on big hills.
So how many of you actually use the HRM to physically control your workout? Or is it just an expensive stopwatch?