My county's online juror pool site is nice. They mailed me the standard questionaire and gave me the option to fill it out online.  By logging back in I just found, before getting anything back in the mail, that they picked the worst possible day for me to serve as a grand juror. (The one day of the month that my training class, with $500 contractual penalty for missing it, meets in July) I was able to submit my deferral request online too. All I ask is that they bump me a week and we're good to go.