Martin Lewis has been an invaluable source for money-saving news throughout the coronavirus pandemic, often finding long-forgotten loopholes that could save consumers a handy pot of cash they can then put to better use. In the latest edition of the MoneySavingExpert weekly newsletter, the f inancial guru shares tips on how to cut bills, without cutting back in what he calls "my checklist of big and easy savings to ensure your finances are lean and fit for 2021".