On macOS this can be really useful, change the current terminal to the top most folder in Finder, do not recall where it came from:

  # Change to the Front Folder open in Finder
  function ff {
    osascript -e 'tell application "Finder"'\
    -e 'if (0 < (count Finder windows)) then'\
    -e 'set finderpath to get target of the front window as alias'\
    -e 'else'\
    -e 'set finderpath to get desktop as alias'\
    -e 'end if'\
    -e 'get POSIX path of finderpath'\
    -e 'end tell';};\
  function cdff { cd "`ff $@`" || exit; };