Best thing, as you know, is to 'clean up' your data, and this should be relatively simple to do too, but your 1st question was about 'map display', correct?If working with points, a crude (but effective) way is to simply control this at the 'Placement Properties' on the Labels tab of Layer Properties. One way is, in the Buffer section, enter a small value to override the placement of coincident points....but careful not to introduce a problem not displaying points clustered close together that you indeed do wish to display.