Christ, aren't the people on this site helpful!!
We started up in 1991 and were simply a car and a ladder, canvassing customers door to door until we could make enough to pay our bills.
We progressed to a small van and better ladders, with more customers, domestic and commercial, and now drive a Transit van fitted with a Reach and Wash system. Our customers range from two monthly domestic window cleans to daily night club contract cleans, carpet cleaning and most things in between.
Take your time, work hard and the work will come your way. so long as you're professional in what you do you'll keep your customers and they will probably secure you more work than anything else.
Above all, enjoy the freedom that this business gives you.
Good luck.