Martin Lewis simple £10 gadget that could cut energy bills by £40 every winter

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1 outlet · 1 article · first seen 6 Jun 2026, 10:32 · last updated 6 Jun 2026, 10:32

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Martin Lewis simple £10 gadget that could cut energy bills by £40 every winterinvestigative
jade.wright@newsquest.co.uk | Jade Wright2 Feb 2026, 13:22similarity 100%