“I’m a boring man,” says Mike Elwin, an energy management consultant from Warrington. “My friends think it’s ridiculous how much I use Microsoft Excel. But it’s a dead handy tool.”
Elwin, 56, has long used Excel to organise his life – from mapping finances, to plotting medical test results, to monitoring his household energy use. When his son was born in 2007, he made a spreadsheet for the feeding schedule.