title: Stop seaborn plotting multiple figures on top of one another
body: <p>I'm starting to learn a bit of python (been using R) for data analysis. I'm trying to create two plots using <code>seaborn</code>, but it keeps saving the second on top of the first. How do I stop this behavior?</p>
  
  <pre><code>import seaborn as sns
  iris = sns.load_dataset('iris')
  
  length_plot = sns.barplot(x='sepal_length', y='species', data=iris).get_figure()
  length_plot.savefig('ex1.pdf')
  width_plot = sns.barplot(x='sepal_width', y='species', data=iris).get_figure()
  width_plot.savefig('ex2.pdf')
  </code></pre>