For a clean face, you gotta start with basics.
-Wash your face with a decent cleanser, natural if possible
-Use a soft towel and get your dead skin off and pores cleaned out
-dry with clean towel
-My personal strategy is to use virgin or expeller pressed coconut oil. (anti fungal/microbial/bacterial/good for overall health, read The Coconut Oil Miracle). The good oil will help to prevent your skin from needing to produce your own dirty oil.