A window cleaning service that uses vinegar for cleaning window glass has a secret weapon at their disposal. Cleaning your windows with vinegar is one of the easiest and safest ways to make your home shine. The recipe for vinegar-based window cleaner is easy to remember and one bottle will last you several months.

• 1 cup warm water
• 1 cup white vinegar
• ½ teaspoon dishwashing liquid (optional)

When you mix together the required ingredients for the first time, adding the small amount of dishwashing liquid will help to cut any sticky grease or grime that may have collected there. Once you have finished that first bottle, you can eliminate the dishwashing liquid and stick to the 50/50 mixture of water and vinegar.

A stronger 75/25 mix can be used on windows that are especially dirty. Cigarette smoke or exhaust can leave a film on your window that is hard to remove, even with the dishwashing liquid.. A stronger vinegar solution will cut through the film, making your windows crystal clear and sparkling clean. In this case, newsprint does work best and will help to cut the film. You can clean the window a second time using a paper towel if you want to make sure you've removed the entire residue.

Many people swear by newsprint to wipe their windows clean, but you will get close to the same results if you use a paper towel. Simply spray and wipe the cleaner away. Let it sit for a few seconds if you haven't washed your windows in a while. As soon as you can see the window starting to dry, the job is complete and you won't have any ugly streaks or smears.