So a friend of mine set up a business a couple of months ago and was instantly really, REALLY busy, nothing related to what we are doing (actually archery related) but I was amazed at how quickly he got work, asked him his secret and he answered group on. Now I am currently drowning in work, but never wanting to miss a trick has anyone used group on? any good for our line of work? not sure how well it would work for window cleaning and what kind of offer you could give, but my guess is you would get loads of people use you once really cheaply with the deal and never have you back again. But what about gutter work, conservatories, pressure washing etc?