Delete/merge mutliple vertices on the same spot My problem can be seen in the pics below... I want to edit this part of the model but I can't select the vertex that connects all the edges that seem to be attatched to it. Instead, I have to delete three layers of vertices on the same spot (and lose some faces too), in order to find the desired vertex. I am pretty sure I have never extruded or done any transformation around there. 

This happens way too often while modeling and I spend too much time deleting vetrices and "rebuilding" lost faces. Is there any tool that can help me fix this?

Thanks in advance



Desired outcome (without losing faces):
Select every vertex with A, hit W and select remove doubles .
 you may have to adjust the merge distance if they are not exactly on the same spot.
  

To make vertices that are on the same location merge automatically, enable automerge.




Another option is to select all the vertices again with A then press Space to open the search, then type Remove doubles (Or for saving time, just "dou")

Then press enter or click on it.