This doesn't fit with the usual recipes on this site
but it has been very useful for me. It's a window cleaning concoction I was given by a friend. It's very easy to make and will clean your window without any nasty chemicals.
Mix: 400 ml of water
3 tbsp/45 ml of vinegar
1/2 tsp/2.5 ml of washing up liquid
fill into an old, clean spray bottle. I am using an old garden spray bottle.
I use it also to get my children involved in our cleaning routine. They love spraying and cleaning our big mirrors.