I don’t write my novels by hand, but I’m definitely on team handwritten notes! I have a few notebooks specifically for when I need to get away from online distractions and out of my own head and just put things on a page, but I hoard notebooks for all sorts of other projects too.
My current NaNo notebook is a cheap one from IKEA, but I’ve been toying with the idea of dedicating a proper Leuchtturm bullet journal to NaNo when I have the time, for trackers, meal plans, survival kit, wordcount rewards, and other stuff I’d like to do properly to keep me motivated and organized through camps and Novembers.
In my “basic” pencil case for my NaNo notes: For the writing, I have some mechanical pencils I default to a lot (especially my Pilot H 125C Progrex 0.5 and my Pentel P205 0.5), some Palomino Blackwings, plus a whole lot of pens. I draw a lot, so many of my pens do double duty, but the ones I tend to pick for writing are my Pilot G-Tec-C maica gel pens (colours!), my Pentel Document Pen, and my Platinum Preppy. I have a light blue Pilot FriXion for highlights.
(That said, while I’m a hopeless sucker for stationery any day, I sometimes make do with the super cheap notebooks from Søstrene Grene or a basic notepad and whatever pencil or ballpoint pen I have handy, too. The nice stationery is a fun bonus and motivator, not a requirement!)