There are a few hotels that do have concierge lounge access year-round. For example I know the JW Marriott in Indianapolis does. A friend who was just in Zürich Switzerland said that the Marriott there has great lounge access every day of the year. When asking to book reservations the agents do not know which ones have lounge access 365 days a year. It would be nice if we could come up with a list and document who has that availability. Nice to know when you're traveling on weekends and holidays.