<p>So one question goes like this:
Summer Activities
(volunteer work, research, summer programs, personal projects, if not already listed on the Common Application) - indicate years.
It says "if not already listed on the Common App." So should this entry be normally left blank, unless you have really rich experiences that you can't list elsewhere?</p>
<p>Yes, if you have already listed all the interesting things you have done during your summers elsewhere on the Common App, then you can leave it blank.</p>
<p>If you did something one-off that you didn’t list elsewhere during the summer (eg Math Camp), then put that here.</p>