I have a big front window and have been trying to get my husband out there with a ladder to clean it for me as I hate heights. But He just never seem to have the time. The other day a friend of mine told me about this Windex Window and surface cleaner, that you hook up to your garden hose and it cleans your windows. I took her advice and bought this stuff and I gotta tell you, it worked wonderful. The nozzle has three setting. One where you just spray the water from the hose on the window and second the Windex sprays the window and it foams right on there too. Then thirdly it has a rinse setting. I was so pleased. Now I don't have to bug my husband about it and I can just do it myself. As long as you have a garden hose this is the only way to go when it comes to cleaning the outside of Windows and Surfaces. The spray on this is unbelieveably far. I was impressed. My friend told me that her bottle has lasted two years. So at this price per bottle you really can't go wrong.