I call it Send / Delete Pic and its basic function is to quickly send memes to friends whom I regularly pass memes with. I typically find these memes from facebook or twitter, but I rarely text through those channels if I have the person's phone number. As a result, I kept ending up with tons of memes saved to my photo library, wasting iCloud storage. This workflow simply grabs the latest picture added to my library, asks me who I want to send it to, and then deletes the picture. Since I regularly send these pictures to the same group of people, I added them all to a contact group so I only get a list of those individuals I want to send it to. In my case I have chosen the incredibly descriptive name "People."
It's one of the most basic workflows I have created, but at the same time is probably in my top 2 or 3 for most used. As always, below is a look at the workflow if you want to see how I built it. If you just want to import it then go (here). Upon import, it will ask you for the name of the Contact Group you want to use (see below). This name should be written exactly as it appears in your contacts.
Feel free to tell me what you think. As always the best way to reach me is at Twitter