I wouldn't worry about it.

However, if for some reason you are worried about mail, and don't feel comfortable forwarding your mail to a friend or relative, you can use a mail-forwarding service.

I've read of some that now receive all your mail, and scan it for you and post it to an online site. You then read and review the stuff online, print out what you want to keep, and delete the rest.

I don't know how many places do this, but here's one, with a focus on people doing ocean voyages:

http://www.sbimailservice.com/

[p.s., as for jury summons, I wouldn't worry about it -- I think in most jurisdictions you just have to say you were traveling, and they'll put you in the hopper for the next round of summons]