Do you want to clean your windows or mirrors? Then try this simple solution.

You need:
125 ml of alcohol (Brennsprit/Spiritus)
125 ml of water
3-4 tablespoons of apple vinegar
1 spray bottle (rinse thoroughly with hot water before use)

Mix all the ingredients and fill the liquid into the spray bottle. And ready is your own window cleaning agent.

A usefull hint for window cleaning: Spray the liquid on  the window  and pull the window wiper gently horizontally from left to right (or vice versa). Heavily soiled glass you first wash with water. I use old newspapers to polish after cleaning. This way you can avoid traces on the glass.

See the photo for which window wiper I prefer to use.

Have a clear view and fun!