Nice work Dave,
Just 1 point for you:
you write on your website :Some window cleaners use a program called George that does it all for you. This is good if you are lazy, very disorganised or forgetful but I just keep it all written down inside a book.
May I point out that your comments are very incorrect, not in any way justified! I use George, I operate a large company, am VAT registered, have 3 vehicles on the go day in day out and have over 1800 customers, if you feel you can operate with your book and pencil then please come to my office for the day and show me how you do it! By the way, the Tax man will crucify you if your books are in pencil, its easy to rub out if you get my drift!!!!
Otherwise, you have what looks like a good website for newbie window cleaners.