In reply to getmeashiny.

Usually I've got two or three cards with me at all times: today and tomorrow and a longer list of this month's to do items. Three cards folded into my pocket take up less space and are far more portable than any notebook-based bullet journal I've ever used including A6 notebooks and Field Notes sized notebooks. The drawer-based portion are for cards upcoming and cards filed and done for potential later reference.

For times when I've needed to travel with more than a handful of cards, I take a small pouch: https://boffosocko.com/2023/11/06/index-card-cases-wallets-covers-pouches-etc/

I've got portions of repeating household tasks set up within my system which uses the following color code:
- purple: daily
- blue: weekly
- green: monthly
- yellow: quarterly
- red: annually

One of the best and most thorough descriptions of this sort of workflow can be found in:
Young, Pam, and Peggy Jones. 1981. Sidetracked Home Executives: From Pigpen to Paradise. ed. Sydney Craft Rozen. New York: Warner Books. http://archive.org/details/sidetrackedhomee00youn (November 3, 2023).

Incidentally, I've only laid out a year's worth of cards in advance because I've been doing this pretty reliably for over three years. When I started, I only made cards as I needed them.