Pwnthis

Firstly, click here to Play Farmville


Credits: PaperJam

Follow the steps on the images. Click for bigger view

I have tested it and refreshed my game and
the money saves. Be warned though, if the game refreshed, the item disappears so only stop when you are done.

Try on a cheap item first! Once you are confident, do it on the most expensive item you can afford.

Most expensive building is the VILLA.
Note: if you screw it up, you will lose both the money you paid to buy the building and the building itself. So make sure you test on a cheap item first! I have managed to get 1 million from just 400k.