title: Naming conventions for "number of foos" variables
body: <p>Let's suppose that I need to store the number of foo objects in a variable.</p>
  
  <p>Not being a native English speaker, I always wonder what's the best (= short and immediately clear) name for that var.</p>
  
  <p><code>foo_num</code>? <code>num_foo</code>? <code>no_foo</code>? <code>foo_no</code>? or something else?</p>
  
  <p>The full name should be <code>number_of_foos</code>, but it's a bit verbose.</p>
  
  <p>What's your favorite and why?</p>