Best tax-related joke of the week - by a whisker - comes courtesy of Radio 4's That Mitchell and Webb Sound.

The sketch: a typically overblown razor ad for the Accelerator 12-Blade:

'The first blade shaves you close.

'The second blade shaves you closer still.

'The third blade sets up your internet banking.

'The fourth blade shaves you closer still.

'The fifth blade does your VAT receipts and puts them in an office file, not a shoebox.

'The sixth blade...'

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