Dropbox

Invite friends: both sides can get extra storage space (official terms at the time prevail)

Rewards and campaigns may change at any time; the official site's current terms prevail. No income is guaranteed.

1. Open the official Dropbox site (https://www.dropbox.com/) and confirm the domain is official, not a fake or proxy link.
2. Read the official rewards/referral/affiliate page (https://www.dropbox.com/refer) and confirm the current campaign is available in your region.
3. Sign up and complete email/phone verification; where real-name verification, a card or ID is required, use only your own real information.
4. Check the requirements: payment method, regional limits, review period or minimum spend.
5. Key step: copy the official invite link from your account; your friend signs up and installs the desktop app.
6. Try it at small scale first, and pay or commit long-term only once it meets your needs.
7. Payout note: rewards are storage space and cannot be withdrawn.
8. Turn on billing/budget alerts and note trial end and renewal dates.
9. When you stop using it: back up your files before cancelling a paid plan, and confirm nothing auto-renews.
10. When promoting or sharing, disclose the relationship and avoid false claims or "guaranteed income" talk.
11. The official rules at the time prevail; this site makes no income promise.

Steps are a conservative summary; entry points and eligibility follow the official site's current rules.