Exercising,
Exercise? Really? Granted I don't do much of it in everyday life, but seriously!
Haruki Murakami's day consists of waking up early, and going for a long ass run, before settling down and writing for the first half of the day.
And exercise is shown to put one in a better mood, after hours of sedentary activity, helping your mind refresh.
So, I'm a bit reluctant to go along with this particular point.