Useful Finder settings to change here:
Show Path Bar enables a bar at bottom of each Finder window which displays location of opened folder in the file system with possibility of navigation to each level.
Show path in title displays location of opened folder in the file system in the title of each Finder window.
Show hidden files enables displaying of hidden/system files.
Open window when removable device is inserted effects the system reaction to CD/DVD of flash-drive inserted.
Note that all Finder settings take effect after pressing Apply button. Each Apply will force Finder to restart, so if several Finder windows are opened or Finder is busy doing an operation like copying, some of windows may not be reopened after restart and operations will be cancelled.