Colette's watercolor supplies:

Paper:
140#  Cold press
Great brands to use: Arches, Lanaquarelle, Canson Montval, Fabriano, Strathmore Windpower, Fredrix watercolor canvas

Brushes:
Round #8, #12
riggor  #000
flat 1/4", 1/2"

Pigments: tubes or pans
professional grade watercolors:
cadmium yellow, lemon yellow
cadmium red, permanent alizarin crimson
ultramarine blue, phthlo blue
burnt sienna, lilac, sap green, hookers green
brilliant pink, cobalt violet

Palette:
white large palette with lid

Miscellaneous:
exacto knife, liquid frisket, rubber cement eraser, cloth towel, watercontainer, salt, windex bottle, pencil, graphite paper, tissues, photo reference material.