Behind the till in the basement of Hatchards, a bookshop in London's Piccadilly, is a high shelf, well out of customers' reach, with a row of paperbacks.

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Of course, the DVR is popular because it's not tied down by content windows, so as long as streaming content has a shelf life out of our control, the DVR is a necessary evil.

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Business advisory firm Deloitte said the amount of drilling, as well as the number of oil and gas field deals on the UK Continental Shelf, levelled out in the first quarter of this year.

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Some are selling out within hours of being put on the shelf, if they even make it to the shelf.

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We use commercial off-the-shelf applications in intelligence work to sort out all of these many different, fragmentary reports.

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ExxonMobil is interested in prolonging the shelf life of drill bits, which wear out after only hours boring holes in the ground.

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So a good money saving tip is to look out for clearance sales of the older model, or models reaching the end of their shelf life, as they tend to get cheaper as they get older.

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Walking past the busts of notable scholars, each with solemn visage gazing out from the distant past, I pass shelf after shelf crammed with learning.

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Reflecting a set of books and magazines laid out on the coffee table at home, the core layout of each customer's "Daily Shelf" lets them easily find their latest read or a new issue of their favorite magazine or newspaper.

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While it is important to think out of the box when developing products, there markets, like mobile payments, which have a long shelf life.

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