Burke advises Vegas visitors to stick to clear (gin and vodka), high-end alcohols, and drink at least one glass of water after two to three drinks.

BBC: Hangover help from a Las Vegas bus

It's clear Facebook wants to stick to its roots, or to seem that way, even in the face of billions of dollars it's likely to make on Friday.

CNN: Doug Gross,

It is not yet clear whether this bargain will stick.

ECONOMIST: American diplomacy

And it is not clear that any new agreement will stick.

ECONOMIST: The European Union and Russia

America has been making it clear for several years that the biggest stick it has in coping with conflicts in and around the Pacific is its security treaty with Japan.

ECONOMIST: Can Japan be Asia��s policeman?

What isn't clear: whether the newly acquired customers will stick around once they get hit with the tax bill.

WSJ: In Lieu of Toasters, Bank Customers Burned

Mr Olins notes that countries, unlike companies wanting to build brands, find it hard to stick to a strategy, project a clear message, or measure success.

ECONOMIST: National branding

The lessons our short list of graduates is teaching us is clear: Unless you are a wild gambler, stick with the small companies riding the big trends.

FORBES: Health, wealth and technology

As to outcome, the prime minister's calculation is that, given a clear, straightforward choice, the people of Scotland will stick with the Union.

BBC: Independence referendum: triumphalism deferred

Philips is also making it clear that employees are expected to move around in their careers rather than stick with a single geographical region or product area.

ECONOMIST: Philips redraws the lines

But whether he will stick to that threat, or indeed whether any boycott at this stage would be convincing, is not clear.

ECONOMIST: The question-marks over Peru��s presidential vote