Rakuten‘s biggest ever referral promotion which awards a $40 bounty to both the referring party and new member is underway. (Cashback can also be converted to American Express Membership Rewards points.)

But plenty of people sign up for promotions like this — and never complete them. They either forget all about them or don’t know exactly where to amass $40 (in this instance) to achieve the minimum spend requirement.

So here are some quick ideas for you (if you’re new to Rakuten) or to pass along to folks you referred!