Basic equipment is all you need
Keep your squeegee fitted with a sharp, new rubber blade. Purchase two or three to have on hand. The pros we talked to change their squeegee blades as often as once a day. That's because you just can't do a good job if the edge of the blade becomes nicked, sliced or rounded over with use. If your squeegee leaves streaks or just isn't performing like new, don't hesitate to replace the blade. You can get a little more mileage out of blades that aren't nicked or sliced by simply reversing them to expose a fresh edge. When you store the squeegee, make sure nothing touches the blade.
Our squeegee method is easy to master
Step one for cleaning windows: Dip the scrubber in the bucket and squeeze excess water from the scrubber.
Will you need to use a ladder when you wash your windows? If so, consider using a ladder stabilizer.