Airlines are hungry to make money on routes to Cuba, too. Since news of the relaxed regulations broke, CNN reports that JetBlue, Delta, and United Airlines have already said they want to offer commercial flights there. On Thursday, a United spokesperson said, "We plan to serve Cuba, subject to government approvals, and look forward to doing so from our global gateways of Newark and Houston." Interestingly, Newark Liberty International Airport wasn't included in the list of above approved airports, though that page was last updated on Dec. 31, 2014.
Then: You couldn't use your bank cards there
Now: You can use your bank cards there
To spend any money in Cuba, US visitors previously had to either come with all the cash they'd need, or use a foreign-issued credit or ATM card, since spending money was illegal in Cuba. Well, American credit and debit cards will now work there, with no limit to how much you can spend per day. Except, y'know, how much money you've got in your bank account.