Juneteenth marks the official end of slavery in 1865. Most stores and restaurants are expected to be open normal hours.

Like most federal holidays, expect your local banks and credit unions to be closed in observance of Juneteenth. Postal service retail locations will be closed on Thursday, and there will be no regular mail delivery — except for holiday premium Priority Mail Express — according to a U.S. Postal Service release.

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.