@Tisha. Professional window washer... I was at one time.
Product for Windows to use is Ettoree professional super concentrate. Mix according to directions in an oblong type bucket. Need a lamb's wool topper or microfiber now on a handle or pole. A good squeegee only, one that is a rubber blade in a stainless steel casing. Type that rubber blades can be replaced in. Most squeegees are crap.
Cleaner is applied with lamb's wool ( might be microfiber now)
Up and down motion or vertical. It is then squeegeed off horizontally. Keep some good white paper towels handy to wipe blade periodically and any drips on window.
Hope this helps!
May your days be full of joy and happiness!
