This is the kit I use when I am doing plein air sketches, it contains:
- my lovely W&N pocket watercolour box,
- some extra brushes (old cosmetic brushes tend to be small but good quality)
- a couple of pencil stubs and a pencil holder, eraser, pencil-sharpener,
- a purse-sized kleenex pack,
- a natural sponge,
- and postcard-sized watercolour paper