title: How to change font size without affecting TOC?
body: <p>I'm writing a report in LaTeX and I just made a table of contents. But in my text, I would 
  like to increase the font size of my chapters, and sections. Actually, I use this :</p>
  
  <p><code>\chapter{\large blah blah blah}</code>
  <code>\section{\normalsize blih blih blih}</code></p>
  
  <p>But I would like to write "blah blah blah" in \Large, and "blih blih blih" in \large. But if
  I do that, it also changes the font size in the TOC...</p>