As crazy and random and spontaneous as life itself.
You never know what's coming with Nichijou.
Technically a slice-of-life anime, but not driven by storyline. Like Azumanga-Daioh, it focuses on Josei Koukou Seikatsu and often makes no sense, but that is also its winning point. Still, relationships b/ w main and minor characters are a strong focus and may remind you of the bonds you formed during high school yourself.
It will make you laugh at things you didn't think could be funny.
Always good when your brain needs a rest after a day at work. Not an anime to marathon or watch back to back. Like chocolate cake, good in small doses. Something sweet to bring some happiness into your day.