I also agree with the warm up excercise I am 61 still in contracting love it!. If you go to China the first thing you see in the morning is thousands of people of all ages and sex warming up in the street at 6.00am preparing for work. Preparing for the day ahead. Sports people do it before they go on the field so why do we as trades people just get straight out of bed and drve 50 or 100 miles and start work with nothing more than a cigy or a cup of coffee?