We all want our socks to be soft and cozy, but sometimes things can get in the way like hard water, using too much detergent or packing your loads of laundry too full so the dirt and grime doesn't fully rinse out of your socks. Figure out what is causing your crusty socks and remedy it to have the soft, cozy socks of your dreams.Most laundry experts say you shouldn't use fabric softener on your socks or your towels. This is because it leaves a waxy coating that prevents detergent from penetrating the fibers, so in the future your socks won't be able to get fully clean and might develop bad smells or start to feel even crustier than before.Drying inside a dryer instead of hanging your socks to dry is another way to keep them soft because the tumbling process makes socks feel fluffier.