Once you've found a skin moisturizing product that works, you should decide how often you'd like to use it. Although there's never a bad time to moisturize, there are periods throughout the day that are more beneficial than others.
If you're only going to use a moisturizer once a day, make sure you do so after you get out of the bath or shower. Pat yourself dry with a towel, but apply the moisturizer while your skin is still slightly damp. This will help your epidermis retain the extra water, especially if your moisturizer has an occlusive agent in it.
If you've got a bit more time for skin care, try applying a moisturizer before turning in for the night. You'll definitely be able to feel the difference in the morning.
It's also a great idea to carry a little pocket bottle of moisturizer with you. That way, you can hit any trouble spots throughout the day and keep you skin looking healthy and smooth at all times. Remember, dry skin is exactly what it sounds like -- dry. If you keep your epidermis properly hydrated, you won't have to worry about dry skin.