I would say the end skincare goal for pretty much all of us is healthy, smooth, and glowy skin. We'll pay a lot of money for products from cleansers to moisturizers to
serums to get there. The only hitch is that there are many paths to "good" skin, and it all depends on your skin type. The products you use for your oily skin might not exactly work on your friend with dry skin.
One skincare item that can help across the board? A good exfoliant. Now, the specific product you choose depends on your skin's needs, but some exfoliation every now and then will help slough off dead skin cells, reveal smooth skin, and encourage skin renewal. If you have oily, acne-prone, or combination skin, it might help to exfoliate once or twice a week. For sensitive and dry skin types, however, you might be better off limiting your usage to once a week or even less frequently. Bottom line: Everyone should keep an exfoliating product on hand, no matter their skin type.