title: How to make GIT ignore my changes
body: <p>Although the title seems similar to previous questions, I could not find the solution to to my Simple case:</p>
  
  <ul>
  <li>I committed to my branch 'ABCD' : <code>git commit -a   .....</code></li>
  <li>Then decided to visit a previous commit so : <code>git checkout 2387687326487</code></li>
  <li>Here I made some changes which was for testing purpose only, and I don't want to keep them</li>
  <li>I am done, I want to get back to my latest commit(again:ignoring changes whcih i made to the old commit) : the command <code>git checkout 'ABCD'</code> gives error:</li>
  </ul>
  
  <blockquote>
    <p>Your local changes to the following files will be overwritten by checkout....please commit or stash...</p>
  </blockquote>
  
  <p>while I don't want to commit or stash or whatever. I just want to go back home :) what should I do please?</p>