Registration to Nielsen's Scanning consumer panel. By signing up they agree to take part in a long terms study: They receive a free handheld scanner and scan all the products they buy;they are then entered into a variety of sweepstakes and receive point for each product they scan. The points can be redeemed for prizes from the Nielsen catalog like: appliances, electronic devices, household goods or shopping vouchers Addintional notes: *Genpop (MF18+) *who has a landline and/or mobile device, and * who is the main grocery shopper and willing to scan their groceries