Most window cleaners, jealously guard their secret formula. But I don’t see any point in not telling. Dawn dish soap , about 3 drops per gallon. It provides the glide squeegee rubber needs. Though be warned, it is tough to use in sunlight. Or on hot glass. You can spend money on different kinds of window cleaning soaps. I have tried a lot of them.
I personally use , Unger pro soap and Glass gleam. Also add one or two caps of Wilson super slip for glide. One is for exterior the other is non-toxic for interior work.
Cotton or linen for detailing on glass . Micro-fiber for cleaning of the frames and sill. I personally use a scrim towel , which is Irish linen cloth . You can find some linen napkins at a yard sale .
I would recommend , anywhere from a 6 to 12 foot pole. At the max 18 foot pole. Because doing pole work has a learning curve. Plus it is not easy doing it 2 story. Unless using pure water with a brush.
I personally carry a short one. 3ft closed, 6ft opened. 12 foot pole collapsed is 6ft . Then i have my Carbon-fiber poles. 22 foot main section , with 3 additional extensions.
I find a step-ladder is very useful,. About 3 feet high for last step. Also a A- frame over a extension ladder that reaches about 2 stories high – not advised for anyone not confident being at heights. I prefer the A frame. Because it is very versatile and sturdy. I have run into many situations where an extension ladder only, would not work. Can get over bushes , picture windows above entryway doors and sloping lot grades. Stairs as well as exterior lighting, such as lanterns.
This helps me hold all the necessary tools. So my hands are free while climbing ladders , removing screens. My tool belt holds my back pouch. Which has 2 brushes for cleaning tracks, frames ,screens. One stiff and one soft. Also holds micro-fiber cloth for wiping down frames and sills. Holds my bucket on a belt. Where i put my t-bar and squeegee. I have 2 D rings on my belt. Which have a carabiners and rings on them. They hold my scrim detail cloth and a spray bottle. Which holds solution for cleaning windows Also holds my scraper and a few misc. items for working. Such as a 5 in one and paint can opener for getting screens off. All this helps me work safely and more effectively on and around ladders. You can pick up at lowes or home depot. AWP brand tool belt and pouch. D ring attachments are on some of the belts. They also have Velcro attached D rings. A 2-3 storage area pouch will work well for you.
You will also need. Blue scotch brite pads . Bronze wool 0000 . magic eraser . Blue scotch brite pads are like bronze wool. So they will do if yo can not find the bronze wool. Both of these will take off debris on the glass. Magic eraser takes off silicone really well. Just moisten a portion of it. Then scrub the spot . Bronze wool will take off paint overspray with elbow grease. Your next option is to wet the window and scrape it.