An effective, low-priced acne treatment?

One of the most effective treatments I've seen both in friends and myself is crushed up aspirin used as a mask and scrub. I usually crush 5-6 pills and mix them with honey and then apply to my face. (Honey sounds like it might clog your pores, but it's actually non-comedogenic and extremely sterile!) If you prefer not to use honey you can also just mix aspirin with water and apply it as a paste.