By Sarah Aguirre, About.com Guide
If you really want your window or mirror to be streak free, clean from top to bottom. Begin at the top and work your way down to make sure that no drips will happen on the glass surfaces that are already perfectly cleaned.
It's amazing what a difference this one simple tool makes on glass. Having to re wipe areas of glass is a guarantee that you'll have streaks. Using a squeegee makes it effortless to polish each section of the window. A long handled squeegee is a must if you'll be doing tall windows, and it will do double duty in cleaning shower walls as well.
The sun can prematurely dry the window wash, leaving residue and streaks. Wait for a cloudy day to wash your windows and you'll end up with a brilliant streak-free shine.
No matter how hard you try, residue seems to buildup in the corners of our glass. It can be very difficult to get to that residue, unless you have the right tool. Try using a cotton swab to clean those hard to reach areas of the windows in your home.
Try washing windows with an old worn t-shirt. Old t-shirts won't have any lint residue and they are just absorbent enough to get a window polished clean.
Many glass and window cleaners can cause damage to the framed wood areas of our mirrors and windows. Be careful not to allow drips onto the wood that can damage these surfaces. Avoid spraying too much cleaner at once. Instead spray the window in small sections working from the top down to the bottom of the glass.
Mix together 1 cup rubbing alcohol, 1 cup water, and 1 tablespoon vinegar. Using isopropyl alcohol and white vinegar together makes a quickly evaporating spray glass and mirror cleaner that competes with national brands. This can also be used to give a nice shine to hard tiles, chrome, and other surfaces.
There are many people who love to use newspapers to polish their glass surfaces. It does work and can work well, but many people don't like getting newsprint on their hands. The newspaper also doesn't hold up very well when it gets wet. But it's worth giving it a try.