Ah, Harvest. One of Dominion's least-utilized cards. Really, though it's a terminal $5 card that usually produces $3, and often produces $4. It's truly a testament to how powerful the other $5s are that this card is held in such low regard.
Moving on, here's a game I just played where a Harvest-centered strategy got me 4 Provinces and 2 Duchies by Turn 14.
http://dominion.isotropic.org/gamelog/201205/10/game-20120510-214854-cb36167e.htmlCards in supply: Adventurer, Cache, Counting House, Farming Village, Fortune Teller, Harvest, Outpost, Pearl Diver, Scout, and Throne Room
I am second player. We both open Silver/Silver, as there is absolutely nothing going on here. (Farming Village really makes Fortune Teller extra useless). The question is what to do with $5? The obvious thing, I think, is Cache/Counting House, which is where my opponent heads. But I am loathe to go Counting House, so I pick up a Harvest, then a Cache, and then another Harvest.
I wouldn't expect the two to synergize really, because Cache is giving you non-unique cards for the Harvest. And yet here's how my Harvest plays broke down:
For $2 -- Twice
For $3 -- Thrice
For $4 -- Twice
Well, that's decent, isn't it? Anyway, I'm sure my shuffle luck was pretty good here, but I thought the result was interesting and worth posting.