Can I reschedule jury duty more than once?

I don't know what state you're in, but in the state in which I live, jurors are given free bus passes. But yeah, I'm sure that you could reschedule. Just call ahead of time and state your situation. If you are truly unable to find a means of getting there to serve jury duty, just say that. They can't force you into going, considering that this is your voluntary service to the United States of America as an American citizen. I'm sure another chance will come up to serve jury duty too. Don't sweat it too much.

Yes, as many times as you want to. If the court tell you otherwise just tell them an anonymous stranger on the internet said they had to let you do it. Trust me.

No. At that point you have to give them a reason to disqualify you permanately.