By
eHow Home & Garden Editor
Difficulty: Moderately Easy
Step1
Get a little paint brush with stiff bristles or a small straw broom. Brush it along the sides and bottoms of your window sills to loosen dirt and debris.
Step2
Brush dirt and debris out of the bottom of the window sill onto the floor or ground. Use a rag to wipe out any debris left behind.
Step3
Use a broom or vacuum to clean up the debris. A vacuum brush attachment can also be used inside the window sill to suck up leftover dirt.
Step4
Spray the sills with a grease-cutting all-purpose cleaner if they're too gunky to clean with a brush, broom or vacuum. Read the directions to make sure the cleaner won't harm painted surfaces. Use a rag to wipe out the gunk.
Step5
Remove sliding windows from their tracks if you want better cleaning access. This will allow you to reach a few inches of space you wouldn't be able to reach otherwise.
