As the sun is creeping over the horizon, and long before he’s laid eyes on a heifer, Charlie Perry can be found hunched over the computer at his family’s farm in the NSW Northern Tablelands.

Build more efficient spreadsheets by using the dollar sign to lock specific rows, columns, or permanent addresses when referencing cells.

Forget the nail polish racks and spa appointments for a second, because some women are far too busy saving lives, building ...