Paula's Choice store is having 20% off all their AHA and BHA exfoliants until 4am AEST on the 4th of February. If you don't know what these products refer to you can check out this page for some extra information. The 2% BHA Liquid product comes highly recommended for those with Acne problems but results are obviously dependent on your own skin type.
Paula's Choice products are highly regarded on the SkincareAddiction subreddit, which in itself is a great resource to educate yourself and find new products.
Don't forget about the 3 FREE Samples on orders over $5.
Paula's Choice has also recently introduced a referral bonus of $15 off your first order when you spend a minimum of $30 (full disclosure, the referrer will also receive a $15 credit). If you would like to use my referral link to take advantage of this deal please find it here
they usually have free shipping and 20% off AHA BHAs, so i guess if u can wait, wait