The idea of a mansion tax was first proposed by the Lib Dems before the last election, although the Conservatives oppose the move and the policy was not adopted by the coalition government.

BBC: Lib Dems look at extending mansion tax

Conservatives are also expected to vote for this amendment - which will set out the areas of tax policy that the two parties agree on while not committing the coalition to the idea of a mansion tax before the next general election.

BBC: Mansion tax: Labour playing games, Cable says

He said that the rumoured mansion tax would be a bad idea but increasing stamp duty on properties wroth is perfectly sensible because it gives the rich the freedom to choose.

BBC: Rich will 'vote with their feet' on taxes

"Luigi's Ghost Mansion: Haunting Hijinks" takes that idea and cleverly inverts it: The GamePad player becomes the pursuer a ghost trying to sneak up on Wii Remote players who carry ghost-detecting flashlights.

CNN: Nintendo Wii U review: A tale of two screens

Although he warned that Labour was "probably playing political games" by backing a mansion tax, the policy was "an idea whose time has come", Mr Cable told Sky News.

BBC: Lib Dems look at extending mansion tax

For some reason, the idea that Hugh Hefner would be padding around the Playboy mansion in LA late at night, keeping track of the progress of his beloved Illini (Class of '49), seemed reassuring.

NPR: 'Only One Playboy At Playboy, And That's Hef'