Two-pack of TP-Link HS100 Smart Plugs for $40 ($20 each). Each normally sell for about $25.
Plug into an electrical socket, and control the power on/off button from any mobile device or Alexa voice-control.
Common use is home-automating lamps and lights that plug into an outlet. Use your phone, tablet, or voice-control with an Amazon Echo to turn the lamps on/off.
It could be used on a toaster with a mechanical lever. Prepare the toast and press down the lever with the TP-Link powered off, then use your phone, tablet, or voice to power on the toaster when you wake up in the morning.