I love the idea of Ugmonk's Analog system. Yet, as you may know (from a previous post), I have a system that is working well for me for daily notes & tracking tasks.
Still, there are times I need to jot some notes by hand. Maybe I'm brainstorming, doing a little journaling, or writing a follow-up while presenting (a common occurrence).
The good news is that Baron Fig's Strategist cards fit in the holder perfectly, too. You get the nice standing view, as well as the card storage in the block. I expect this would work well with any rounded-corner 3x5 index cards, too. (If you have others that you try, let me know!)
(pictured on top of my super favorite veg-tan Hobonichi cover, with a TWSBI Go Smoke, and Sailor ink)