How Do You Write?

Have started writing a new story. These early stages involve plot points here and a burst of prose there. Some small character detail I think of on the way to work. Inspiration from an overheard conversation...

So, how do you write / take notes? I have come to prefer sketchpads to notebooks. I like the space on the page without lines. Sometimes I'll scribble a vertical note. Sometimes I'll draw a character though my skill in this area is lacking. I also like an elastic band around the notebook cause I can add other papers more securely. Other papers usually being a group of poems I'm working on.

And I like the binder type that binds down the left hand side, so I can fold the pages back neatly, while balancing the notepad on my knee - am usually writing during my commute, so do the circumstances dictate the utensil?

Size wise I need something that will fit in my handbag, so smaller than A4 but space enough for a paragraph of writing with notes jotted around it.

Writing utensil wise, I use a refill pencil. I find pencil softer and easier to write with than pen and the refill types mean you never have to worry about sharpening. Also, you can write upside down.

I'm curious to know if other people have their preferences and idiosyncrasies? Or have I just exposed my madness?...