Use a cleanser to remove any oil, dirt and sweat from the surface of your skin. Cleansing is the most important step because it prepares your skin for everything else that follows: toning, moisturizing and makeup applications.
Toner is also a very important part of your daily regimen. Toners are fresheners that help to clarify and tone your skin. They have a relatively low pH, helping to adjust the pH of the acid mantle after cleansing so it is not overstripped.
Always apply moisturizers after cleansing and toning. Even if you have oily skin, you still need moisturize to avoid additional environmental damage. You might try a gel-based moisturizer since it feels lighter and seems to be absorbed more quickly into the skin.
Follow these three steps to basic skin care every morning and night. You'll look better, feel better, and your skin will thank you for years to come.