Sitecore users and developers occasionally ask how to find out when an item was most recently published or when it was first published. Unfortunately, the answer isn't as simple as you might assume.
Here's a quick one to correct an omission from my previous post where I detailed 3 rule conditions that respond to the presence of a cookie. On reflection I realised I should have included a corresponding action class. So here it is. As before, I haven't spent much time considering the practical applications. I'll leave that part up to you.