Welsh councils reported a 30% fall in the weight of landfill over the last three years and now the launch this month (April) of SkipAdvisor, a free iPhone app for people planning home improvement projects, aims to further reduce the amount of waste sent to landfill.    Developed by Constructing Excellence in Wales (CEW), a Welsh Government supported initiative, SkipAdvisor provides householders with advice and guidance so that they can make sure that any waste leaving their property is dealt…