So being fresh from school, a lot of times as students we dealt with unrealistic values for caps and inductors. I remember doing a textbook problem where a cap's value was 1 F. Now that I'm in the real world. What is considered to be a realistic value? To push the question further, I see a lot of schematics with caps used as coupling caps, how do they go about picking such value? What is considered to be a small cap? 1 pF? Whats a big cap? 1 uF?