Digital programmable timer plugs. Got three recently. MsWza grasped the the thistle of setting them up, gawd bless 'er. I would’ve instinctively gone for either the traditional notches-around-a-dial ones, or some swish Hive ones, but they’re only for occasional use when we go away, so the centrist option of LCD-screens-and-little-rubber-buttons won out based on price. Very evocative of a past era, but not so old-school that they’re simple and obvious to work out without the little paper manual.