Shelf 01
Tools
Instruments for thinking, not for busywork.
Featured
Zen
An open hand for loose thoughts. Put them down, and Zen picks them up.
Fluxcards
Flashcards that never ask the same question twice. Each card shifts a little every time, so you learn the idea instead of memorizing the answer.
Sortified
Sanity Preservation for Hoarders (or normal people who like being able to find their things)