and the squeegee blade at the back means you’re leaving minimal residue (i.e. the main culprit for streaking) on your windows ...
Always check that your equipment is in good condition; specifically, squeegees should have intact rubber edges to prevent damage. Mind the Weather: Not all weather is window washing weather.
two suction squeegee heads (one 28cm in width, the other 17cm), a squirty bottle for the cleaning solution, a 20ml sachet of window cleaning concentrate and a small plastic scraper for bird poo ...