CIBC Aventura Visas have some complimentary passes through Visa Airport Companion Program which gets you into Plaza Premium Lounges. They pretty much let anyone in there now (lots of low AF cards getting complimentary passes). Recently the one at HND had a waitlist outside to get in because it was so full. And there were literal kids crawling all over the floor and under peoples chairs while the parents pack in as much food and drinks as they can into their bags like they were robbing the place.
Also if you have a Mastercard World Elite card, you might be eligible for free in-flight Wi-Fi on select airlines. You get 12 sessions of 90mins for free, you can check here:
https://redeem.boingo.com/mcsi/standard-faqs/