I use a lot of watercolor for many of my drawings. My favorite brand of watercolor
products is made by REEVES. Their paint lasts me a long time.
These I wouldn't usually call an "art" utensil, but they really work well for me. I use
the PaperMate : Titanium mechanical pencils. The grip is really good and the pencil itself is just on of my favorites to use. The pencil lead I use is just the 0.7mm.
All my other utensils I use are very very generic. I enjoy finding good products that aren't a
bajillion dollars. My current favorite fountain pens came from the dollar store; so long story short, find what you like and don't always fall for the art store supplies!