The question I get asked more than any other is where people can access genealogical records for free. There are many answers and many more websites, but the largest single source for 100% free genealogical records (no ads or credit card required) is the fantastic collection known as FamilySearch Historical Records.
The FamilySearch Historical Records collection is provided online for research at no cost by the Church of Jesus Christ of Latter-day Saints. To date there are 1,413 individual collections containing more than 3.5 billion genealogical records from around the world. To give you an idea of the vast coverage of the collections, this past week alone FamilySearch added (or added to) U.S. Bureau of Land Management Tract Books, 1820-1908; Western Ukraine Catholic Church Books, 1600-1937; Passenger Lists of ships arriving in Tampa, Florida; World War I Enemy Alien Registration Affidavits, 1918 from San Francisco, California; Denmark, Estate Records, 1436-1964; Russia, Simbirsk Church Books, 1768-1939; plus several more free collections.
The FamilySearch website is funded entirely by the Mormon church and does not require any type of subscription fee. There are a few individual record collections that may require you to register for a free account in order to access the records, but this is because of requests/contracts with the original record holders. There is no fee to create or use a FamilySearch account. If you're unfamiliar with the site, then you may want to read Search Tips for FamilySearch Historical Records for help with fully utilizing the many resources and records available.
Spend this holiday time to browse and enjoy. Then come back and let us know what you have found!