Make it syntactically correct, ffs
Emacs mutters to itself
Testbed for UI
Style in-progress
Wrap data-entry stuff in a form
Change input/output approach: use color-coded buttons both to decide what's being entered AND to display what's completed today.
Bring the input area in line with new design
Add a summary of recent entries.
Found the secret for limiting the width of a numeric column, huzzah.