Visit the Indian Market and find the article you are searching for. If you are looking for an alpaca throw, find three shops that carry this throw and ask the price.
Visit each vendor individually and ask what their best price is. You will get a feel of which vendor is most open to negotiating.
Find the vendor with the lowest price and tell them you can only afford half of what they are asking. They will start working towards your number.
Take their rock bottom price and take it to the next vendor. See if they will get the price lower than your first vendor.
Pick the vendor who offers the lowest price and purchase your item.