I would establish an unconditional basic income and invest heavily in education and science and the arts. I would opt out of nuclear power, invest in the infrastructure and would stop profiteers and speculants from grabbing more and more land and housing stock and increasing the rents more and more. I would turn electricity works, gasworks, waterworks and public transport and other key industry into state owned companies again, because these are highly important and should not be used to gain more and more profits to the disadvantage of the consumers due to increasing prices. I would take care that pupils in schools learn about equal rights for women and men and that it is wrong to harrass people. And as head of government I would take care that religious organizations do not get money from the state. The government has to be absolutely neutral.
I would ban plastic bags.
Yep, my country would be so much cleaner without it.