I’m not the only one who has written in the past about the fantastic deal you get when you sign up for the Hawaiian Airlines Bank of America Visa and the Bank of Hawaii Visa (if you care, those are not affiliate links). There are $79 annual fees for each, but both earn you 35,000 Hawaiian Airlines miles after spending $1k in 4 months, which can be converted to Hilton Hhonors points at a 1:2 ratio). In other words, $158 will get you 140,000 Hilton points. Fantastic. And yes, you can apply for both cards.
But I’m bringing that up because of a little-publicized feature of those credit cards — you can transfer Hawaiian miles between accounts for free if the receiver has a Hawaiian Airlines credit card (details here).
This is helpful if you have a spouse or significant other. Each of you can sign up for both cards, netting you a total of 70,000 Hawaiian miles each. You can then transfer those points for free into one Hawaiian Airlines account.
That account now has 140,000 Hawaiian miles. Those miles can then be transferred into 1 Hilton Hhonors account, giving you 280,000 Hhonors points for only $316. That’s 4 nights at most Waldorf Astoria hotels. Or, if you’re inclined, 37 nights at a Category 1 hotel. That might come in useful after your wife kicks you out of the house for mileage running.