How do I apply an image to a model?

I am struggling to apply an image to a simple plane, I have searched but everything comes up with UV/textures all I want is an image on a plane.

If you don’t want to use UV coordinates just for a plane add a material and add the texture to this material. Set viewport to GLSL textured to see it

Demo: http://screencast.com/t/ueTTrrKjTf

Or use Images as Planes addon to add a textured plane http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Add_Mesh/Planes_from_Images