* Relaxation is a good thing if you have been working hard recently.
* Meditation is a similar option.
* If you get bored easily, this is a good opportunity to develop a hobby or life skill -- cooking, sewing, gardening, birdwatching, whatever tickles your fancy.
* If you are not so broke you desperately need money, consider volunteering. It is usually quite easy to fill hours this way. You could choose something to support your career, like teaching summer programs; or something totally different, like Habitat for Humanity.
Thoughts
On doing nothing:
* Relaxation is a good thing if you have been working hard recently.
* Meditation is a similar option.
* If you get bored easily, this is a good opportunity to develop a hobby or life skill -- cooking, sewing, gardening, birdwatching, whatever tickles your fancy.
* If you are not so broke you desperately need money, consider volunteering. It is usually quite easy to fill hours this way. You could choose something to support your career, like teaching summer programs; or something totally different, like Habitat for Humanity.