What are /r/CaffeineFreeLife's favorite Products & Services?

From 3.5 billion Reddit comments

I'm living caffeine-free for more than 8 years now.

I'm the author of "Dark Secrets of Caffeine" - https://www.amazon.com/dp/B082VZZMRR

I wil wait for your study to be published, and see what it'll bring, and how mainstream media will react to it.

Your scientific study is already under my radar.

I want to try this!

Stash Tea Premium Caffeine Free Herbal Tea, Cinnamon Vanilla, 18 Count https://www.amazon.com/dp/B01DP9BUJW/ref=cm_sw_r_cp_api_glt_fabc_VA5R8NPMW0A66A5AMZNR?_encoding=UTF8&psc=1