Cannot Remove WebPart
It could be possible (in some situation) that it is inpossible to delete a WebPart from a Page. E.g. you inserted some javascript in a content editor webpart (HTML view). This Javascript makes the page causing a bug and the page wil return an error (so you can't edit the page). Simply add ?contents=1 after the url: e.g. on the default page http://mysharepointurl/default.aspx?contents=1
Now you can delete the webpart which is causing the error:
