I had joined a new job and my manager asked me to write which I can complete in sales for three months...adn when I wrote them , he asked me to make course of action with time frame....and then he asked me to stick on my table Board and read it everyday....I was amazed to see my self potential to complete the tasks and when I was delayed of my schedule...this list use to give me kick to run faster and on the top of that if I complete my activities before the time then It allows me to add more activities....It surely works.