If you're like me you get into a habit of using the same software year after year. I use Photoshop and Lightroom and only visit others when I have a review to do or a tutorial. When I use other software I often realise why I stick with what I know, but occasionally I see a feature that makes me wish Photoshop was a little more interesting.
For example while recently writing some beginners guides to Paint Shop Pro X3 I decided to skim around the surface of some of the filter areas and came across a really good one that adds realistic print styles. Called Time Machine, you can set an era and recreate one of the classic print styles. There's Daguerreotype, Albumen, Cyanotype, Platinum, Autochrome, Box Camera and Cross Processing.
I used Platinum in a recent portfolio upload , and here's one using Daguerreotype. You can have it set to add a realistic frame too.
Let me know what software you use that has interesting extras that Photoshop lacks.