Cheap and disposable: short hand pads from a high street chain of cheap stationery shops in the UK (The Works). One pound for 150 leaves with top spiral. Pages stuck up on wall for todos &c, discarded when complete. Also a ream of A4 photocopying paper which I use on a clipboard for diagrams sketches and mind maps and drafts.
More permanent: generic A5 sketchbooks from artist materials shops. Typically 80 leaves of 100g/m^2 off white plain paper and board covers with sewn signature bindings. Around a fiver each.
Recently discovered somewhere in the middle: Muji 'Pocketnote' A5 plain notebooks with paper covers and a lot of leaves (over 100). Flexible, thin shiny pages (no good for sharpies/gel/ink) but cheapish around three pounds and a nice feel.
None of these are so expensive to become precious.
More permanent: generic A5 sketchbooks from artist materials shops. Typically 80 leaves of 100g/m^2 off white plain paper and board covers with sewn signature bindings. Around a fiver each.
Recently discovered somewhere in the middle: Muji 'Pocketnote' A5 plain notebooks with paper covers and a lot of leaves (over 100). Flexible, thin shiny pages (no good for sharpies/gel/ink) but cheapish around three pounds and a nice feel.
None of these are so expensive to become precious.