If I go there will be trouble,
And if I stay it will be double.
So you gotta let me know,
Should I stay or should I go?

- The Clash, 1981

New research published last week by the Institute for Public Policy Research (IPPR) has refocused attention on emigration.

New research reveals 11 million Brits are thinking of leaving the UK within the next two years to live abroad.  If you're one of them (or you're already an expat), there are three essential things you need to think about: