The hack
Add a link to your product in your PS and get free traffic.
Why it works
It’s been said that people tend to pay more attention to the PS, than to the rest of the email. Adding a PS to all emails was one of the OG growth hacks that made Hotmail grow back in 1996.
People like Ali Abouelatta used it to grow his First 1000 newsletter in the early days.
How to do it
Add a one-liner to your PS with a link. Don’t try to put in more than one. Pick the one that is of the highest value and go with it.