I've recently been upgraded at work to a massive tablet which makes drawing and doodling so much easier and more enjoyable.
It also came with a program called Sketch Pad which is kind of just a toned-down Painter.
Very easy to use, and quick!

Designed thing

Was random text (its the name of some place in Germany) and I wanted to play with pale colors that almost clashed and blended into each other.
Different monitors probably make it look crap or indistinguishable.