As regards watercolour paint, I prefer the pans rather than tubes, no particular reason, just personal taste.
Schmincke: My favourite watercolours. Strong pigment, great flow and very easy to re-wet.
Daniel Smith: My go to paints when I want granulation (I use DS tubes, not a great choice in pans).
Sennelier: Great paints, translucent with great flow properties.
Winsor & Newton: Strong pigment.
I like brushes which are a sable/synthetic mix and a little stiffer than just the pure sable brushes, I feel like I have better control of the brush.
Jackson's Icon Brushes: I mainly use round brushes (sizes 4, 6, 8, 10, 12, 16), Quill brushes (sizes 4, 6, 8, 18) and also a 2" mottler brush for grounds.
I like either, Cold Pressed NOT or Hot Pressed in either 300gsm or 640gsm weights, my preference is for the 640gsm, the Archës 640gsm whilst not cheap, is well worth the outlay, but like most things, it's all down to personal preference.
Archés: My favourite paper, will take virtually anything thrown at it.
Stonehenge: Beautiful paper to use, this would be my paper of choice, however, seems to have a problem with the surface peeling off when removing masking tape. Great in watercolour blocks, however, I find sheets work out cheaper.
Saunders Waterford: Another great paper.
Winsor & Newton Lifting Preparation: As the name suggests, for lifting colour off paintings, apply before using paint.
Winsor & Newton Ox Gall: Wetting agent, helps improve flow.
Winsor & Newton Gum Arabic: Controls the spread of colour, increases transparency.
Winsor & Newton Granulation Medium: Adds granulation to smooth colour, best used with tube watercolour.
Jackson's Masking Fluid: Has a slight blue tinge so you can see where it is.
Ken Bromley Masking Tape: Good cheap low tack tape.
Nitram Academie Charcoal sticks H, HB, B, B+: Really nice charcoal, quite sturdy.
Nitram Abrasive Stone: Sanding block for sharpening charcoal sticks.
General's Charcoal Pencils, HB, 2B, 6B & White: Favourite charcoal pencils.
Willow Charcoal Sticks: A good all round charcoal, a bit messier and delicate than the Nitram charcoal.
Staedtler Mars Lumograph Pencils 4H, 2H, H, B, 2B, 4B, 5B, 6B, 8B & 9B: Lovely pencils, very smooth drawing experience.
Staedtler Mars Lumograph Black HB, 2B, 4B, 6,B, 7B & 8B: Same smooth experience as the normal Lumograph, but don't leave the graphite metallic sheen on the paper.
Faber-Castell 9000 4H, 2H, H, B, 2B, 4B, 5B, 6B, 8B: High quality pencils, these and the Steadtler are my favourites.
Faber Castell, Polychromos Pencils: Strong pigment and great lightfastness.
Faber Castell, Albrecht Dürer Watercolour Pencils: Good for detail.
Archés HP 300gsm & 640gsm: Good for watercolour and drawing.
Strathmore 400 series Toned Grey Paper: Beautiful paper, works brilliantly with charcoal and white chalk.
Fluid HP 300gsm: Good, standard paper and cheaper that the Archés paper.
Fabriano HP 300gsm: Same as the 'Fluid' Paper, good, standard paper and cheaper that the Archés paper.
Putty Rubber: Great for drawing on a charcoal background.
Plastic Eraser: Good for sharp lines.
Scalpel: Probably the best way to sharpen pencils along with sandpaper.
Silver Wire, 0.5 & 0.9: For use in clutch pencils for Silverpoint drawing.
Liquitex White Gesso: Good ground for silverpoint drawing.
Paper Stubs: For blending graphite and charcoal.