http://www.dailywritingtips.com/free-rein-or-free-reign/ http://www.dailywritingtips.com/free-rein-or-free-reign/ It's not a metaphor about monarchs, but about

http://www.dailywritingtips.com/free-rein-or-free-reign/ http://www.dailywritingtips.com/free-rein-or-free-reign/ It's not a metaphor about monarchs, but about horses ... but I guess nobody knows what those are anymore.