zero_by_divide

Reading your post reminded me of this link (found on HN last month): http://blog.nawaz.org/posts/2018/Sep/solving-my-email-proble...

"If you aren't paying, then you aren't the customer. You're the product."

I use Protonmail. It's encrypted and stuff. https://en.wikipedia.org/wiki/Protonmail

Amazon Alexa with PetLexa https://youtu.be/fdhxzqkvkZw

Google Wind in the Netherlands https://youtu.be/QAwL0O5nXe0

OnePlus Dash energy beverage https://oneplus.net/dash-energy

Google Maps Ms. Pac Man mode http://www.theverge.com/2017/3/31/15136848/google-maps-april...

Generally speaking, you can't go wrong with gift cards. Amazon, ThinkGeek, whatever. Or, y'know, a nice thank-you card. "Hey, you're awesome, thank you for everything you've done for me."

The only justification I've ever seen was places gearing up for multi-factor authentication. The front login page, asking for your account, tells the backend how you're configured to login (token, password, biometric, whatever). Then the second page is variable depending on your authentication method.

Are the coupons stackable?

On that page I see: Download & Enter Promo "ProductHunt20" For $20 in Scoop Balance

I don't know about "best", but there's RePTYr. https://github.com/nelhage/reptyr