Cheap solution that works:
Wash your face with very hot water; this will open up your pores.
Use a cleanser (soap, or one of those fancy brands if you really feel like it) to clean all the gunk out.
Wash your face with really cold water; this closes your pores.
and
Keep your pillow-case clean. Most acne is caused from you sleeping on a dirty pillow-case rubbing on your face all night
and if all else fails:
see a dermatologist if you really have an issue with it