Do you want "Power Outlet"- inside your Medicine Cabinet ?

Next time you remodel your bathroom. Try to instal Medicine Cabinet recessed in the wall with power Outlet.
After you make the opening in the wall- have electrical wire runs to the side of the opening: left or right or both. Make sure to  connect those wire to a GFIC circuit protector. 
Your electrical bathroom gadget will be inside, and not running on the counter top, or inside the cabinet below.
Some expensive Medicine Cabinet  come with...but you can do it your self .