So you have oily skin? That doesn't mean you're immune from skin woes. Even oily skin can become coarse and irritated in the winter. According to the American Dermatology Association, "Skin is not dry because it lacks oil, but because it lacks water. Therefore all treatments are aimed at replacing water in the skin and the environment."
The best way to cleanse your skin is by using plain soap and water several times a day. However, that routine isn't exactly practical if you are at work. Stash some oil-blotting papers in your purse or desk for a quick touch-up. These tiny papers, sold at any drugstore, are great for absorbing oil and not your makeup.
Because of your skin type, you may not need a moisturizer. If your skin feels tight after you've washed it, try waiting 20 minutes. If it still feels tight, use a light moisturizer only on the areas that feel dry.