If you prefer your dessert in a non-liquid form, try the Honeycrisp Napoleon, with its unexpected kick of spiced apple.

NEWYORKER: Ciano

Eike Batista is the classic example of how billionaires are not really billionaires when you consider all the leverage and how all their wealth is tied up into non-liquid assets.

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The solution that Apple stores recommend is iKlear, a non-toxic liquid cleaner, which its manufacturer Meridrew Enterprises says Apple uses on its own production lines.

WSJ: Greasy Smudges Frustrate iPad Owners

The asset side of the ledger would consist of gold and liquid, secure non-governmental financial claims.

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For example, the facility at Pitsea in Britain, on the banks of the River Thames near London, accepts only solid municipal and commercial waste, because European law prohibits the mingling of liquid and solid waste, and of hazardous and non-hazardous waste.

ECONOMIST: The charms of modern landfills

Liquidity for major non-financial corporations has never been better as measured by the high ratio of liquid assets to current liabilities.

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It was originally thought the spill involved about 3, 000 litres of a chemical liquid, but the fire service said it was 775 litres of non-hazardous petroleum distillates.

BBC: Chemicals on M25

For example, for the Swiss franc, one of the less liquid currencies, the two big Swiss banks are already talking of charging non-Swiss banks for any intra-day liquidity they provide.

ECONOMIST: Foreign-exchange settlement