Eat deep sea fish three or four times a week. Salmon works, but gets a bit boring. Remove butter and dairy from your diet and start using olive oil for everything. Steamed vegetables and raw vegetables are rather miraculous once you've eaten nothing but fresh fruit and vegetables for a month or more. You'll definitely see a major difference. Stay away from animal fat. Clean your face with a good quality olive oil before washing it. The alternative is old-fashioned Noxema skin cream. Stings like Hell and a lot of people are allergic to the menthol, but it works, but so do most cold creams. An occasional exfoliation with something as simple as a ripe avocado whipped up with the juice of a lime or lemon works just as well as the expensive products you waste your money on. An avacado mask allowed to dry on your face for an hour twice a week really does work better than just about anything else. And bathe in the evening (shower in the morning) with a couple of table spoons of good-quality olive oil thrown into the bath water as well as a couple of table spoons of Epsom Salts. The salts have a positive effect on laying waste to most of the bacteria that harbor in your arm pits, crotch and feet. Over time, you'll discover you don't need to use as much deoderant. Also, avoid detergent soaps like Zest, Irish Spring, Dial, etc. Camay is a reasonable substitute, but you'll find cleaning your tub/shower and wash basin to be a big issue on a daily basis. Some, not all, olive oil-based soaps may work for you. Soaps with a citrus oil base are also excellent (but cost a bajillion dollars). When in doubt, use glycerin soap. Doesn't last very long, but it does a good job of cleaning human skin without drying it out.
Something very important: use a freshly laundered wash cloth every time you shower and/or bathe. Don't keep using the same damn wash cloth for one for a week. This also applies to those who think that their six-month old loofa is still good. It isn't. You're just re-introducing acne and body odor causing bacteria to your skin using the same sponge or wash cloth over and over.
Recently my old girlfriend from college visited The Squeeze and I. She is three weeks older than me. She looks 20 years younger. Everyone was amazed at her soft and WAY white skin. A guest at dinner asked, "What kind of skin cream do you use?" to which she replied "Money."