I use an older version of photoshop (aquired when I had more money available than I do nowadays). I also have PSP and Corel photopaint on my HD. I keep them all, because each has features that the others don't.

I have been doing a few mini tuts on clothing texturing over at Daz, and about the only thing I have found that people with  paint programs other than PS cannot duplicate is the layer styles which I use frequently to make trimming and beadwork. And that includes Gimp users.

The greatest part of wisdom is learning to develop  the ineffable genius of extracting the "neither here nor there" out of any situation...."