What are the customs of the Spring Festival?

For example, buying new year's goods, sweeping dust, posting New Year greetings, eating New Year's Eve, keeping New Year's Eve, celebrating New Year's Eve, dancing dragons and lions, offering sacrifices to gods and ancestors, praying for disaster relief, worshipping gods, racing boats, temple fairs, playing gongs and drums, holding cursor flags, putting lanterns and setting wine. Traditional festival ceremonies and related custom activities are important contents of festival elements, bearing rich and colorful festival cultural connotations.