Up until recently, I considered myself a pantser. I'd get an idea, either about the characters I want, a setting, the black moment or even just the opening line of a story and I'd be able to sit down and type away, only really planning out a few scenes ahead. This worked for one or two wips and I did enjoy writing this way although it was hard at times.
For NanoWriMo, I spent ages in October plotting out a detailed outline of where I want my story to go, creating characters right down to their quirks and bad habits and outlining the character curves, conflicts and anything else I could think of. I'm actually finding writing this way heaps easier than pantsing although that did work for me to.
What do you do, are you a plotter, pantser or a bit of both?