Hi everyone,
I noticed when I logged into my Ultimate Rewards (at this link https://ultimaterewardspoints.chase.com/freedom/ ) that the examples of Wholesale Clubs includes for the 5% bonus category includes Costco.com! Even though we will only have 10 days or so to use the Freedom in Costco before the quarter ends, Costco's website accepts Visa, so we can use Freedom on their website and still receive 5% cash back.