Kailua Square Shopping Center. It has a "Book Ends" bookstore with old and used books (as well as some new ones). It has Mexican and Vietnamese Restaurants for lunch, two organic baby stores (they sell clothes made from organic cotton...insert sarcastic, judgmental comment here). They also have a Lanikai Juice. Now I've mentioned Lanikai Juice before as the place to get Acai (A-SIGH-EE) Bowls. Here is a sample menu. I always get the Extravaganza with no bananas. The extravaganza comes with double acai, banana, apple juice or soy milk, and granola, topped with strawberries, mango, blueberries, and shredded coconut. You can substitute anything. You can also add honey for an extra $0.70. These bowls are easily big enough to share and run about $9. Definitely worth your time to stop in.
There is also a Kayak shop across the street from Lanikai Juice, next to the Napa Auto Parts store. The kayak rentals are about $5-10 cheaper than the trucks near Kailua beach ($45 and $55 - half and full day). If you plan to drive to Lanikai anyway, it's definitely worth stopping here to rent your kayak. You can rent single or tandem kayaks at either place. The shopping center also boasts a Terry's Burger place, a starbucks, bead shop (I guess there is a market for little girls who make jewelry?), bakery, grocery store, drug store, and other interesting places that are worth walking past while eating your acai bowl.