This recently acquired taste for doing pixelart on my phone when i'm idling (aka in the bathroom / waiting room / etc.) and is the most relaxing thing i've experienced on my mobile so far. Most creative programs i've tried on the phone ended up being uninstalled due to me being unable to create absolutely anything without wanting to throw the apparatus against a wall.
Well, that changed now since i've found a little app that does exactly what i need, so i can prototype ideas quickly on pixelart (64x64px) and then pass them on to my main computer and make them happen.
I'm not sure if anyone else ever does it, but it works even for logotype work, since working on a tiny scale already forces you to try to stay as minimal as possible and it's like doing the entire process in reverse, but for good in most cases.
So, not saying it's the solution for everyone, but if you have a chance to find a pixelart mobile app that fits your needs, there are like a hundred out there and some of them are really good, so if you can, i'd give them a chance. (Plus, so relaxing for the anxious ones!)