Working hard is a gift, and the gift is the best encouragement. An instructor at one of the colleges was accustomed to giving a sweet for selected grades. It seemed like a cool idea, but he was able to collect all the answered papers without skipping any. Gifts and benefits are varying. When I was in higher studies I used to spend time in the library whenever possible. I gifted the privilege of reading a newspaper for the most comfortable place. Remember, there are even some interesting benefits can get in the academic sessions too.
After an intensive study period can involve getting a snack, write a letter, read a magazine or listen to your favorite CD. After a hard test, can be gifted to yourself by ice cream, swim, go in a movie or meet with a comforter. After completing a research paper or the final exam, you can buy something you wanted. Or go somewhere to walk. But remember that the prize should be relative to the work done.