1. When doing a first clean and excusing a rubbish job by saying it'll take three cleans to come up good use it to your advantage by cleaning the house in two minutes flat while scrubbing the upper vents and letting the dirty water run down the glass.
2. Spend £10K plus on a bespoke system, another grand on van wrap and wait for the customers to throw themselves at you because of your amazing business prowess.
3. When the council are digging up the busy "A" road on your patch and using masonry cutters make sure that you work downwind so you can tell all the custies you are changing over to wfp that it's the council's fault the windows haven't come up good when it dries.
4. When the local blind man trips over your "trip hazard sign" quietly put everything away and drive off; if he does manage to stop you just tell him that he's tripped over your bucket and give him the name and phone number of a local trad. cleaner.