Savior during exams
Student's doom, without it!
During college days 'Xeroxed' material (photocopied notes, specific pages of a book etc.) came in very handy.
If not for it, taking exams would have become a nightmare for me at least! :)
[ The picture does not go that well with the prompt but I found it appropriate to show the exam time studying! (Though it is a picture taken at a book fair) :) ]
Inspired by the theme at