I've long struggled with my retention rates. Especially for the free to paid retention rates.I've tried in-app tutorials, email welcome sequences, and trying to arrange calls with customers.Just so I could try to build a relationship so they could ask me questions and I could get them onboarded properly... But none of these was a home run.Then I had the idea to create a way to send personalized thank you videos at scale.Each time a user signs up for your app you get a to-do item to send them a personal video which gets sent to their inbox. The user can then click an email link to a webpage with your video. A new one is recorded each time so your new users each get an ultra-personal email right in their inbox.With everyone being flooded with generic emails (just using their name at the top isn't enough) you can really stand out and show your customer that you're here for them.Imagine getting a personal thank you from Jeff Bezos every time you sign up for AWS?I think this is a really cool idea. But who knows, let me know what you thinkBTW I created a landing page to catch any of you that would be interested: 