We are planning our trip as well and we'll be there in 29 days. Here's what we plan to do.
Day one, arrive at 2:00 PM, pick up rental car and head to Aulani. If we are late arriving we'll have dinner in Honolulu first to let traffic die down, and then go get groceries for our room. If not, we will drive to the resort and check in first.
We'll enjoy exploring the resort and drinks with some DIS-friends, maybe, if she remembers.

.... right Missy?
Day two, tour Pearl Harbor, have lunch at Margaritaville at the Beachcomber and then back to the resort for pool/beach time.
Day three, hang around Aulani and relax and enjoy until our luau reservations at Paradise Cove.
Day four, climb Diamond Head and maybe snorkel at Hanama Bay.
Day five, relax at Aulani or go on a Whale watch, if they are still doing this. It's a little late I'm afraid, but we'll see.
Day six, no plans yet, maybe we'll drive to North Shore to find Giovanni's shrimp truck.
Day seven, Dole Plantation Tour.
Day eight, check out and drive to the airport for our 4:35 PM flight.
We are planning a very relaxed trip as you can see. We always take the attitude that what we can't do this trip, we'll do the next.
Good luck with your planning.
