For dry skin on your feet, apply a thin layer of petroleum jelly to your feet at bedtime and put on a pair of socks. In the morning remove the socks and remove the excess petroleum jelly. To help with winter dry skin, use a humidifier in your home. An added bonus, moist air retains heat, reducing heating costs. If you have dry skin, avoid caffeine.
Caffeine tends to dehydrate the skin.
Apply a moisturizer when your skin is damp, right after a shower or bath to retain as much moisture as possible. To help severely cracked winter skin, use Vaseline on hands and feet and cover with socks and mittens. If you want very soft, smooth, clean elbows-cut a lemon in half and squeeze most of the juice out. After you soak your fingernails in the juice to make them unbelievably clean, place your elbows in the lemon halves. It works fairly well on knees and heels also, but of course, you have to rub those areas with the lemon halves in order to do the job.