* Where to deploy? * Where to store the code? * Which library to send emails with? * Which 3rd service to send emails with?

A long time ago I spent 2-3 weeks building something to do all the above. After completion, I started going to customers and realised those 2/3wks were basically wasted time because I could have just put a google form and would've done just as good a job. Except now you get something a bit better than that.