Hi! I'm no longer on the island, but was for 3 years 1995 - 1998 (K Bay). We used to LOVE to drive over when it was just the Ihilani hotel for dinner and drinks a couple times - felt like a neighbor island without the flight. We often would go for the night on a weekend to Waikiki to the Hale Koa or more often the Moana (they had great Kamaaina rates, $99).
I moved to Maryland but we bought at the Marriott Ko Olina years ago, so go every other year (but did the last 3 years in a row due to a trip to Korea in between our years).
My one tip is to TAKE ADVANTAGE of your time there! Go on staycations! Visit the other islands while you can, especially with your discounts! We took our son after he was born at Tripler to Kauai, Maui, and the Big Island, plus also went to Kauai when I was pregnant, and Maui two other times (Big Island was my favorite - go stay at KMC if you can get a cottage but we broke it up between there and a condo rental in Kona). If you can get a Kamaaina or military rate at Aulani, go, as much as you can. You will never regret it. You're lucky that you can bring a cooler with your own food, meats and fish to grill, drink mixings, etc... I finally learned how to cook fish living in Hawaii, and it's to grill it! Our commissary had just gotten a great fish market area, and it was amazingly cheap and fresh. I grilled fish all the time.
It can be hard living there. We had bug/gecko issues in our (old) house on base. It's been torn down since then and new housing was built (about time). I hated some aspects of that, but enjoyed doing fun touristy things since we got such good deals.
Sorry I'm rambling but if you want to PM me I can answer any questions!