umm, too many to list here, but their policies included:
devolution and the creation of parliaments in Scotland and Wales
Power sharing in Northern Ireland, which created peace which benefitted everyone
Tuition fees on university, which helped people pay less taxes...
a minimum wage, which not only helped poor people but also led to a rise in employment
Wars in Iraq and Afghanistan, which certainly helped the defence industry through probably not all the people who died
Independence of the Central Bank/bank of England, so rational interest rates not determined for political points scoring
Low regulations on banking, made alot of bankers very rich and led to the credit crunch
and many, many more...
A mixed record really, some good policies and some bad ones