Best setup with varying budgets would be good. E.g Starting out with 2k, 5k, 10k etc and looking at what would be the best setup to get and how to spend that money on everything a new guy would need.
Also if you were to put a rough price guide with pictures of houses in the mag that would help alot of new guys out. Only rough as it varies but just an idea. With approximate time it would take to clean on there and maybe even show some examples of problematic windows and how to deal with those.
Maybe even the same for the add on jobs such as conservatory roof cleaning, fascia cleaning and gutter clearing.