Elfyn, When, or if, you go and get some shop fronts in the future, you'll soon find that you can work in half light, near dark conditions. You may have checked some blokes work and found it poor, I find that here where I am too. However, cleaning at 5 am in the morning all year round is a fact of life in this game. If you don't understand how it works, just leave it to those who do. There's loads of other stuff for you to clean in the day light