To this end, Costco has one of the best return policies in the world of retail. With very limited exceptions, members can return any item for a full refund — no questions asked.

However, many major retailers are remaining open this Thursday, even though it’s a holiday. From grocery stores to fast food restaurants, here’s what’s open and closed on Juneteenth. On its website, Costco has a list of federal holidays it observes every year.