Where do all those coupons come from?

Q: ?When I go to the grocery store and see people with stacks of coupons, I ask myself, where do they get them all? Where is the best place to look for coupons? How do you obtain more than one coupon for the same item??

Source: http://www.mycountypaper.com/henrynews/headlines/Where_do_all_those_coupons_come_from_117604868.html

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