As RMT station workers struck over jobs and safety on Monday 9 January, tube drivers on the Northern line took wildcat strike action in support of a suspended colleague.
The day-long strike of London Underground station staff ended last night, as 45 stations were closed.
Today deliveries of some of the US's most popular and influential papers were disrupted by a wildcat strike of the carriers.
British Airways has sacked a second worker for taking part in the wildcat strike which paralysed the airline's Heathrow operations last summer.
Postal workers in Torquay walked out today over Christmas leave, with over 140 staff on wildcat strike for several hours.
British Airways has estimated that this summer's Gate Gourmet staff dispute cost it between £35m and £45m.
British Airways has started disciplinary proceedings against three shop stewards following August's unofficial strike at Heathrow Airport.