A throw pillow can be impossible to clean, since most don't let you unzip the cover and take out the insert. If your decorative pillows need a good cleaning, try disinfecting them with all-natural borax cleaning detergent. Sprinkle the borax generously over the pillow and let it sit for at least one hour. Then use the handheld attachment on the vacuum to clean it up. Not only will this remove the surface dirt, it should also remove a significant amount of bacteria, mold and any other allergy-causing germs.