What i did was i had one quad, i cut the face into 4 triangles, deleted the tri's and added a new face in the hole (see image below). This way i got more geometry to work with. But I'm worried if this is a bad thing to do or not.
The mesh would look like it did before if i chose all 4 vertexes and merged them together.
thanks 
a habbit for me to press W/E/R after i've extruded something :3
