Here is an easy way to have the EZB control other electrical devices.
5v Relay Boards
These relay boards will connect to the EZB and using a digital control, you can have them switch other items (AC or DC up to 10amp) on or off.
I plan on using one to control an air solenoid valve for a pneumatic prop I'm building.
But I could seem them used to automate a household: lights, tv, coffee pot, etc. There are different sizes (number of relays) available for as cheap as $3 USD.