Always liked the 'flex' in the 'tickler' style bucket to be re-sorted periodically, once the month or date can be established, to drive the 'todo' stuff, and as things get more proximate, more definite and also more mindful via doing the review or planning of next month... and yes using 'cards' for GTD or 43 folders, or tickler file traditions never amounted to much, as Filofax, digital got me first... even though 'cards' came early via working in a major public library...

Now with a dedicated AI front of a good calendar, it might all just 'happen' in between reading and high lighting with adequate coffee breaks. : ))))