My house has tall skinny windows and with a vaulted ceiling in the living room and kitchen, they are really hard to clean on the outside. My husband would clean them , but never to my satisfaction. I bought the windex outdoor cleaner kit. It has pads you attach to a pole (the pole that comes with it wasn't long enough, so my husband bought me a longer one at lowe's) and then you just spray the window with the garden hose, clean with the pad and rinse. It does a fantastic job!! Never any streaks always gets them clean. And i don't have to be on a ladder. I have 25 windows plus the garage windows. I can clean them all with one pad AND I clean the car windows on both of our cars with the same pad. I only wish I could do the same with the inside of the windows and all the mirrors in my house.