Should I Still Double cleanse Even If I Don't Wear Makeup?

This is the most asked questions recently. The answer to this is yes, you should! If you are wearing moisturizer or any SPF products, they are to be removed each day thoroughly. Whether you are a makeup guru who wears layers of foundation, eyeshadows, eyelashes, blush, and powder or you love being natural and only use a tube of lip balm, it is always recommended to make a habit of washing your face once in the morning and once at night. 
In the morning, try using a gentle cleanser to remove any oil and dead skin cells accumulated throughout the night. Make sure the temperature of the water isn't too hot because it can be harsh on your skin and later eventually cause irritation.
Double cleansing, especially at night, is crucial since you've been exposed to dirt all day along. Even if you are not removing makeup, use an oil-based cleanser first to eliminate sebum, bacteria, pollutants, and residue from skincare products. Following with a foam based (water based) cleanser to remove any leftover dirt. The benefit of double cleansing is that this ensures your skin to have better absorption of the skincare that follows.