I have seen many people do that. But everyone do it differently. Personally I am at beginning level but I have seen people here who do it very efficiently and it worked for them and they can save lots of money by that too. I know that this kind of thing don't work at all area. But here in our countries there are still many areas and markets at almost every cities where we can bargain during shopping. And people are doing that. Some can able to decrease the cost less and some can do it by lot. Lol. So do you bargain? And how well you are?