Clear Glass Windows

Reflection from a window of Bora Bora, Tahiti and me 

No need to buy those expensive window cleaning liquids simple use the bottle they have come in to make your own.  This is the absolute best way to clean windows

Glass Cleaner

One part white vinegar
Two parts water
A few drops of washing up liquid

Place into a spray bottle or if doing a large area  place 1 - 2 cups of white vingar with a few drop of washing up liquid into a 1/3 bucket full of hot to very hot water. Spray or wash the vinegar mixture onto the windows with a sponge using a circular motion, dry slightly and then rub dry with crinkled up news paper.  Note; use gloves because the newspaper will stain your hands and place used newspaper straight into a bin as it will mark carpet, furnishing etc if it comes into contact.
This is a great eco cleaning solution too.