What device to control mains plug socket?

[Bash 3]

Just wondering what people in the UK use to control devices plugged into mains sockets.  I'm thinking along the lines of washing machine, tumble dryer,  floor standing lights,  phone chargers etc. 

 

I was hoping to use the dual relays as most of my sockets are doubles but I've been informed that wiring in the UK usually stops each plug socket on a double being controlled independently. 

 

I've got a couple of the external on/off smart plugs but just wondered if there was another way? 

[Kuba13 49]

According to FibaroUK they are using Aeotec wall plug.

 

I have looked on what they are offering and it seems like there are relay switches so perhaps there is way to make them work?