For pens, I'm starting with the two I have currently inked, a Carolina Pen Company in Exquisite Corpse, and a Conklin Word Gauge. When those are empty, which should happen quickly, I'll start a more planned pen rotation.
As for notebooks, I have:
-A Plotter Bible Size, where I have story ideas and outlines.
-A random grey plain notebook with other story notes. No idea what brand.
-My old Seven Seas Writer that has old story drafts, one of which I'm expanding into a novella.
-A Pebble Stationery Co. A5 Cosmo Air Light notebook that has current short story work in it.
-A pocket-sized Paperblanks that has a novella draft in it.
-A coffee-stained Odyssey Notebook with a novella draft in it.
-A Field Notes Dime Novel notebook that has novel outlines in it.
-A Barnes and Noble Italian Leather Journal with a novel draft started in it.
-A Graphilo A5 softbound notebook with novel revision notes in it.
-A printed and spiral bound complete novel draft that needs edits.
-And one novel is entirely on the computer (ugh).