Moneylender + Adventurer

I didn't realize the power of this combo until I first tried it.  The moneylender allows you upgrade your coppers to silvers so you'll need to get at least of these two quickly upgrade your silvers.  Following this, start picking up golds when you can.  Don't buy any other actions cards but adventurer cards.  By keep your deck thin, you have a really good chance of getting 4-5 coins a hand, and if you have the adventurer it will be almost guaranteed you will have 8 coins to pick up that province!