This time it’s a timer, too. It’s called the Dialug, and it lets you switch off the power even when you’re not around to do it. The concept design consists of a wall socket and Euro-style plug.

The Double USB concept from designer Ma Yi Xuan would allow users to plug in a device without having first think about making sure the connector was the right way up.

The Double USB has two of these, filling the entirety of the metal tube. Both are spring-loaded, so whichever one is redundant in a given orientation will simply be pushed back as you plug it in.

Before you can set a timer on your Amazon Smart Plug, you’ll first need to sync it with your Alexa app. Detailed instructions for this should be included with your purchase -- but if they aren ...