Some directories make sense to be sorted by date modified, while others make more sense to be kept sorted alphabetically.
How can I make it so that finder will apply a specified sort by selection on a per-directory basis?
If no such feature exists (In which case I hope somebody at APPL is paying attention), I suppose using/remapping the keyboard shortcuts (Defaults being Cmd+Ctrl+5 for Modified and Cmd+Ctrl+1 for Alphabetical by Name) is the next best thing.