When fitting new brake cables, if you haven't got an 'end' to put on to stop the cut cable from fraying, paint superglue on the end - it does the same job*
*tip courtesy of Jimbilly
Also, when cutting cables, put superglue on the area to be cut, wait for it to dry and the strands won't unravel when you cut
Also, when cutting cables, put superglue on the area to be cut, wait for it to dry and the strands won't unravel when you cut