I've gone through so many tools in my practice. These are the ones I've settled on, and believe in. This page will change over time. And yes, there may be some affiliate links.
Cognitive Surfaces
These 3x5" cards are bought in the 1000’s. I prefer blank stock with some tooth, over lined smooth.
Pens
Lamy
I own so many Lamy pens, my ink often goes dry. And that’s perfect for my fibre tip pens.
I use either a felt tip (I replace the roller ball with Schmidt 6040 FineLiner refills) or a Medium fountain pen.
Notebooks
Moleskine
My forever notebook. The paper is smooth. I prefer the dot grid version.
Mishmash
Mishmash is a design focused notebook. Fold flat, and with incredible form.
Baronfig
Confident by Baronfig, is a slightly smaller notebook, and it weathers wonderfully. I prefer this for loose sketches.