I mentioned on another post last week about cleaning leather as an add on service, again most homes or commercial businesses will have pigmented,synthetic/imitation leather furniture as these are the most popular and also the easiest and quickest types to clean. I know guys who just do this type of cleaning and are earning anywhere from €50 to €75 per hour depending on which type of home or business they are working in, they are carrying out the cleaning manually with not much physical effort and all without any machinery, they are also making extra income in offering leather protection, again just sharing from my experience as i know it to be more profitable than just cleaning carpets and upholstery.