What are /r/ReferralTrains' favorite Products & Services?

From 3.5 billion Reddit comments

If you'd like to get a free Revolut Card sing up with my link and get 15€/15$/15£ (depending on your country) as a bonus reward after your first purchase.

🔗https://revolut.com/referral/irene1foj!a13221 (link valid until Nov 20th 2019)

To get your reward follow the steps on the Revolut app: 1. Verify your identity. 2. Charge up to 10€ on the card (you can easily   do it from your smartphone without extra fees). 3. Order a physical card from the app. 4. Make your first purchase and receive your 15€ bonus.

Plus, you'll get 11€ for each friend you refer (invite only).

Please note the card delivery is completely free and takes about a week. Bonus reward amount may vary in other countries / currencies.

Also, I thank in advance everyone who's going to use my link.