I am sure somewhere a tutorial for this exists and I am just fool enough not being able to find it.
So what I have done is:
I have a 4 channel relay module
I have connected the relay module with my RPi and it works fine using my python program.
What I am after now is:
Connect this 4 channel relay module to a "Power Strip Outlet". I am looking at a product like this.
So that I control (turn on and off) each outlet on the board using RPi. For eaxmple: I will have a table lamp plugged in to outlet 1, a room heater puggled in to outlet 2. The outlet's power chord/cable will be plugged in to the wall outlet for the ultimate 220V power supply (as any Power Strip Outlet is normally used). The "power strip outlet"'s Outlet 1 is connected to relay module's channel 1 and outlet 2 is connected to relay module's channel 2 which I will switch on/off from my RPi.
I am using RPi2 Model B.
Any help/step by step guide will be awesome. I am a software engineer so my electrical skill in pretty bare minimum but I do understand the very basic.