I am not sure if it's someone doing black magic, but whenever I check my windows there will always be some dirt on it. I have got tired of cleaning them. I have searched on the net and found many window cleaning methods but I am not ready to try something unless I am sure it will work. Is there any sure shot window cleaning method that you do? Something that guarantees that the window stays clean for a few months? If yes, pleaseee share them here.