I know, sounds boring dunnit?

Anyhow, I've grown up of late what with a house and baby so I've become one of them blokes who wants to mow his lawn every Sunday.

Problem is, I got moss. And lots of it. The lawn is like a sponge. Returf is a pricey job and timely too. So are there any quick fixes? I've been told nitrate does a job but that's all they said. Hardly giving me instructions is it?