Window Wash - cooking recipe

Ingredients

1/2 cup ammonia
1/2 cup white vinegar
2 tablespoons cornstarch
water, a bucketful

Preparation

Combine.
Wash with clean sponge, or micro fibre cloth then Squeegee the water/dirt away!
Never wash windows on sunny days. They will dry too fast and show streaks.
Never use soap.
For fast clean-ups, wash with cloth soaked in white vinegar. This method is great when washing only a few indoor windows.
Shine with newspaper instead of paper towels.
No more guess work with drying the inside panes with vertical strokes and outside panes with horizontal strokes, or vice versa - you will notice quickly what side has the smudges.
After the windows have dried, rub a clean blackboard eraser over them for a really fine shine.