I have two related problems:
A kitchen cupboard where the hole in the plasterboard is now too big so the nail falls out. Can I do anything to make the hole smaller so I can screw the screw back in?
A simple metal non power shower shower holder - every time I screw it in to the wall the shower holder comes loose. I have used rawl plugs to drill into the wall that divides two terrace houses but it doesn't stay in place. What am I doing wrong?