Mostly digital, but I'm never far away from my Parker black pen. No matter how much it stains my fingers.
I really started doing illustrations when I was in High School, and of course as all things teenager, I knew it was a total waste of time. I would doodle in all of my classes to stay focused on lectures, and I became better and better with each passing Algebra period. Not having taken an art class since grade school, I thought it was just a phase, like my predilection to canned iced tea and gas station corn dogs. As it turns out, I was wrong. Come graduation, I was tasked with drawing pictures in everyone's yearbooks in lieu of something interesting to say, cause my teenage mind reasoned that, like, writing sappy stuff was totally lame.
Older and wiser and in College, I was undeclared, but in a very cultured, open-minded way. I had two choices: keep doodling for a career choice, or pick up acoustic guitar and get way too introspective about plants and stuff. Never one for vegetables, I chose the former.
Now, most of my doodles are done in Illustrator, but I still dabble in the sketch pad to hash out ideas and thumbnails. I think of myself as a bit of an illustrator expert and have my shortcuts fine-tuned like a second hand Stradivarius.