The point of this combo is to create a deck that never stalls. This combo focuses on getting 4+ apothecaries, 2-4 warehouses, and two caches. Once an apothecary leaves two or more victories on your deck, you can play a warehouse to cycle through them, constantly generating $8.
This isn't an extremely fast combo, but on slower boards, it can be a dominant strategy. The caches are necessary, they're great for getting more copper in only one buy, which is really helpful. This deck is able to get 4 provinces in about 16 turns, but is extremely susceptible to attacks.
I've also found that this works great with two stables if they happen to be on the board, or island can really help, but chances are you're not going to find all of those on the same board.
Any thoughts and/or criticisms would be helpful in improving this article.