STAPLES: has extended its partnership for five more years with Parago, a provider of reward programs, as its primary incentives vendor. The two entities have been working together for more than 10 years, developing and delivering the Easy Rebate program, which enables customers to use paperless submission for rebates, offers a choice of rewards and quick payment, the companies said. In June, Parago, in partnership with PayPal began giving consumers the option of receiving their rebate payouts into a PayPal account.