Really short for an "article" and pretty simple:
If there are cheap cards, and some way to buy them with an existing card (in the sample game it was Bridge), you can just do the following:
(1) Open Sage/Support card
(2) Buy a potion
(3) Buy Vineyards if you have a potion in hand, otherwise a Sage, otherwise a $2 card that the Sage will skip over
You want to get as many of the vineyards as you can before the other guy sees what you are doing.
Sage is a great card for getting the Potion in hand (and the other support card). It skips everything except the support card, the potion and the other sages - so you can cycle super quickly.
Sage usually falls apart in the end game when it starts drawing your Green, but it doesn't have that flaw when you are going Vineyards.
In this game I was so confident with my ability to cycle I was even BUYING ruins when I couldn't afford Havens - they counted as actions for my vineyards. My opponent who opened Marauder (normally a very good opening) was just feeding me more power to my vineyards.
Here is the sample game:
http://dominion.isotropic.org/gamelog/201302/28/game-20130228-075508-6950caea.html(Glad I got in 3.5 Dark Ages games on iso before the server reset... Idea: What if there was an extension for Chrome that made Goko look and feel like iso... Then people who liked Goko the way it was could play that way. And people who preferred iso could do that too (and even play each other). I have no problem paying Goko money, but I really don't enjoy the interface... It would be great to play with DA cards all the time...)
Ed