NEIGHBOUR'S FRONT DOOR FACING ONE'S MAIN DOOR

I learnt that in Feng Shui, ones door should not directly face that of the neighbour.  There is an ancient saying which goes, “One household prospers, then the other will be bad”. This means that if one household is doing very well, then the neighbours will will not, or vice-versa. It seems that such a situation will also lead to frequent bickering over petty matters at home or at workplace.

WHAT TO DO:
Try putting some pots of plants or objects in-between the two doors. This can reduce the direct clash between the two.

Reference: http://pinkytoky.hubpages.com/hub/Basic-feng-shui-tips-for-the-uninitiated