In my quest to learn I've acquired quite a collection of apps. It's easy to do! There are so many now and most are really inexpensive.
I have come to realize though that, like anything and everything else, I tend to gravitate towards my favorites.
My standard workflow uses a select few which I tend to use over and over. Some of my favorite apps, at the moment, are: iColorama, Procreate, PaintFX, Pixelmator, DistressedFX, and most recently, Photoshop Mix.
Self Portraiture is freedom to be someone else completely.
Bathroom lighting is great
My favorite thing to do is to take a selfie with my iPhone and then distort it so that it borders on the fictional - like a character in a book or in a dream. My favorite app for distortion is iColorama.
When you are the model it frees you up for experimentation.
A) There's no one else around to question your choice of poses, B) You can take as many shots as needed without fear of looking ridiculous (or OCD), and C) No model releases to sign!