For a mild nightly cream that is inexpensive and highly rated, I really like Reviva's 10% cream. Lots of people rave about this. I've also found this at Ulta on sale occasionally.
For a bi-weekly or monthly peel, I like Skin Obsession's 40% Glycolic Acid Peel. This peel really works well, but it stings and itches A LOT. I use this about once a month.
Dr. Heather Brannon recommends solutions with BHA at 1-2% and pH of 3-4.  This 2% Salicyclic Acid by Refresh Skin Therapy is well rated and is naturally derived.
For a daily lactic acid lotion, I like AmLactin 12% Lotion. This is also a great body exfoliation lotion that will help retain moisture while increasing cell turnover.