If there's one product to grab when you're fed up with your smudgy windows and dirty floors, it's probably Windex. This cleaning ... Make sure not to let the spray drip onto the paint too.

Make sure not to let the spray drip onto the paint too. Apart from Windex Ammonia-Free Glass Cleaner ... which is ammonia-free and leaves no residue. Some suggest Sprayway Glass Cleaner.