Notebook
refillable cover - likely A5, currently use 9.5 x 5.5
some standard size paper
Japan - buy a notebook cover
nap-dog.com
Pen
Fountain pen with a nib that I like
In a color that I like
Would be nice to have a nice size
There are a few options here.
Starter pen is the Lamy Safari or the Twisbi Eco
Lamy Safari 2000 is a huge recommendation
Pilot Custom 823
Ink
Various options, but I like black or blue ink