If you're like me and you have a tonne of electronic gadges plugged into the same socket (ie my TV, Surround Sound, XB1, Desktop Computer and Laptop Power in 1 house and TV, Surround Sound, Powered Sub, PS3, Desktop, x2 Laptops, External Powered TB HDD) then when it comes time to disconnecting some of these items for whatever reason, you have to trace back what exactly the fuck it is before you pull the plug.
I found this lifehack somewhere else, so I can't take credit for it, but grab a breadclip (pictured) and using a sharpie, write the device on one or both sides of the clip. Attached it to the power cable right before the plug and then plug it into your power board. When you need to remove a single device, you can simply read which one you need to pull instead of tracing it back or playing Russian Roullette.