You may wish to read all of the stickies and the wiki as they will usually have the answer to these type of questions. Example - the following macro was in no less than 3 of the stickies at the top of this forum:

/script AcceptGroup();
/script AcceptQuest();
/script AcceptTrade();
/script RetrieveCorpse();
/script RepopMe();

That will auto accept rezzes, shared quests, group invites and trades for you.