what is a good face-care regimen for people with oily skin?

Don't overdo on the washing. This stimulates the oil glands and causes more oil to be secreted. Don't use an oil-based moisturiser. Johnson's Baby Moisturiser is good and mild. Don't go in for a face massage. Wash your face with a mild soap/facewash not more than thrice a day. Use a good astringent or, if you prefer going natural, rub some ice on your face after washing it last of all in the night. Go in for a good face pack once a week. This should help your skin retain its youth as well as keep the oil to the minimum.