It is recommended to best work on windows on a cloudy day in early mornings or late afternoon as direct sun makes window cleaner dry too quickly leaving streaks behind.
Just pull back the blinds or curtains, open the windows and inspect its sill, frames, and tracks for dirt and cobwebs.
Sweep out debris using a big paint brush or a small sweeper
Run a vacuum over the screens so you don’t need to take them down. Using a sprayer, spray glass cleaner or a solution of your favorite cleaning agent until it is heavily misted but not drippy. Wipe with a lint-free cloth until dry. I use old cotton shirts to wipe it dry as it best absorbs dirt.
Windows of different types need different styles of cleaning. For jalousie windows, clean each frame with the use of a damp micro fiber cloth washed every now and then from a basin with a cleaning solution. For big window frames, spray it with glass cleaner then use a squeegee to dry.
Simple procedures, with quick and easy methods. By the way, I clean our windows every two weeks