Previous work noted an influence from frequency of collections, LAs reducing collections of residual waste to fortnightly from weekly achieved more recycling (WRAP, 2009). This study suggested that the reduced collection frequency forced householders to manage their waste by recycling. The 10 LAs in England with the highest recycling rates used fortnightly rather than weekly collections and achieved 30% more separation (LGA, 2007). This was corroborated in data from McLeod and Cherrett (2008) who measured a 20% shift from residual waste into recycling following a hange to fortnightly collections with separated garden waste.