Homework was the bane of my existence, I would figure out the most I could skip without too much issue. I was a bad student. I got that calculation wrong once though. I thought something was a percent of a grouping, not a strait percent of the grade. oops.

I have a shirt I got near graduation that says "skipped class to study for other classes". In my case it was work on labs and the skipped class was an intro class when I was thinking about double major or minor.