title: Time.sleep() on ChromeDriver
body: <p>I am using ChromeDriver for some web scraping using Python. 
  My code uses <code>browser.find_element_by_xpath</code> but I have to include <code>time.sleep(3)</code> between clicks/input because I need to wait for the webpage to load before I can execute the next line of code.</p>
  
  <p>Was wondering if anyone knows the best way to do this? Perhaps a feature that can automatically execute the next line instantly when the browser loads instead of waiting for an arbitrary number of seconds?</p>
  
  <p>Thanks!</p>