The Art Of Haggling

In the Arbat, with.. yes.. a cow.

Unfortunately, where I live haggling isn't really done. In fact, until I went to Russia last year I'd never really heard of it before (shock horror!) so I have to admit I wasn't very good at it which sucked for me because I would be cheerfully going along buying all my souvenirs whilst my friends would be getting the same Russian dolls for a third of the price. And that made me think, for people like me, are there tips on better haggling?