just wondered the correct way to do this is ....what do you guys do about plastering around these??? do you take them off or leave them on...... plastered around a masking taped light switch once cos thought it would be easier to use my trowel agqinst it..... it worked well till i decided to change the switch and all the plaster came off with it????? whats the best way to do it????? thanks in advance for the info ;D