I draw on the computer with a mouse. My arm is killing me.
I should get a tablet and all that but you and I both know how 'should' works. It'll be a while, although it already has been a while. It wouldn't be so bad if the desk was the right height but it isn't so I'm all out of place. I also draw at a desk and sometimes I don't sit in the right chair. I also don't draw for 6 hours on end but I do go on jags where I am drawing every day for an hour or two a day.
One of my preferred methods of digital drawing is actually collage. I use an existing scanned image, made by me and uploaded or found on the net, which I then manipulate. I usually do it like so; turn image into high contrast black and white, select a random bit, copy and paste, overlap, crop, continue, finish, use finished image as initial image, start again.
The image below was sourced from a digital illustration of a bird that I drew to satisfy some desire to prove (to myself and others) that I could draw a bird. I drew the bird. It was ok. I cut it up and made this thing.
I like it because I like asemic nonsense, metal iconography, industrial culture aesthetics, minimal forms.