As for drawing materials I use a wide range, as a teenager I 
started out working in colouring pencils. I loved using Karisma
colouring pencils and when they stopped being made I switched
to Derwent, both Derwent Coloursoft and Derwent Inktense.
Later I started adding soft pastels by Schmincke.
At the academy I learned about graphical techniques like etching, linocut etc. Thanks to my studio at Grafisch Collectief Thoets I was able to continue to work in these techniques.
For me most important are the cutting tools.
Pfeil linoleum & block cutters are truely the best!
After a serious hand injury I had to switch everything up because etching, gouging or even just drawing with pencils would hurt my hand too much.
Working with brushes in bistre and ink was a good solution. Luckily the use of my hand is almost back to normal.
Right now I love doing linocuts and watercolours. As for watercolour brands I use a mix of Winsor & Newton, Schmincke and Daniel Smith.