Nearly everyone knows the trick (if you can even call is a trick) of using a mirror in a room to create the illusion of more space, and it certainly does work. Some plans in this space making approach work better than others though, so you need to give it some thought and certainly take the room dimensions you are focusing on into consideration, as well as the current lighting options and colours of the walls. For the best results in both space creation and light reflection, you need opt for the light colours, best as most people know, is white. White walls and ceilings will really add the feeling of more space to a room and as the colour white reflects all light, if you get your angles right, then your mirror or perhaps mirrors can have light bouncing all around your bathroom making it the brightest room in your home, or possible the brightest room in the entire neighborhood.
The type of mirror that you should be aiming for is the large wall hung style of mirror. If you can find and afford one that has an invisible edge or edge without a frame, then that is even better as the Mirror will fade into the wall and become almost invisible. The bigger the mirror the better too, as it will of course be able to reflect more light and create more space. You also need to think about which wall you will be fitting it on – you want it to be a wall that will reflect the light coming in from the window, but at the same time, it needs to be at some kind of angle to the window, otherwise you run the risk of just reflecting the light straight back out the window and miss the purpose of lighting up the room.