42 Ways To Make Your Entire Home Cleaner Than It's Ever Been

“Mold spores are microscopic — so if you can actually see the black color, you literally have millions or billions of spores present,” germ expert Kelly Reynolds, Ph.D., previously told BuzzFeed Health. And if you have allergies or asthma, by the time you can see the mold, it may already be irritating you. Most shower curtains are machine washable, and you can actually toss your liner in the wash, too. (Read more gross bathroom facts that will inspire you to be a cleaner person here.)