Saved me a lot of programming time

My use case: Allow someone to include a gift message when purchasing delivered food.

The basic functionality of the plugin effectively created individual posts in a custom post type, one for each submitted message. Great. But the real power is in the mapping. Because I don’t want one user who views their online message to tinker with the URL and find another user’s message, I have a hidden field calling a function which creates a unique and very complicated URL (a base64URL of a hash of a UNIX timestamp+random number). I had thought I was going to have to write my own code to push the contents of that hidden field into the post slug, but this plugin allows me to map that field directly to the slug when the post is created. Fantastic.