It's easier and less expensive than you think to achieve streak-free windows: Mix three common ingredients in a spray bottle, and get cleaning! Get the recipe here.

Lint-free rags or small towels: Microfiber cloths are highly recommended for wiping blades and drying edges. ... Use a separate clean rag to wipe the perimeter of the glass.

To prevent your mirror from fogging up during showers, you can use a simple DIY solution. Mix one part water, one part white ...

Place a dab on a cloth and rub the scratches; the mild abrasion should smooth out the glass without a trace of a scratch. Rinse and wipe dry, again with a soft lint-free cloth.