Water Color Sketching

I carry my field sketching kit in my backpack.  It contains only the basics:  a zippered school art binder with small watercolor set, spiral watercolor book, brushes, pencil, eraser, water cup, Kleenex, clips and a padded folding travel chair.  For B&W sketches I carry a separate pouch over my shoulder that has a 6x9 spiral sketch pad and a Sharpie ultra-fine pen.