You know, people tend to like to buy companies that are doing well.
Devise a simple strategy so you can sleep at night.
Fear and greed tend to affect one's judgement.
We basically followed the idea of buying comapnies selling below working-capital - at two thirds of working-capital.
Try to look for weaknesses in your thinking.
Before selling, try to re-evaluate the company again and see where the stock sells in realtion to its book value.