I just found a job for an American friend where I work. Don’t know how long she’d have spent without a job if I hadn’t told her about the vacancy and given her tips on what sort of questions to expect in the interview and how to answer them etc. She beat 130 applicants so must have something going for her anyway, I have to say.
But I think Ruffers is right. Get a well written and designed CV to all the relevant agencies. If you get one agency person who likes your CV you can have a professional working on your behalf finding the best job to match your skills and experience.
That was my own personal experience anyway. I applied for shit loads of jobs when my previous place closed down - looking through job adverts and lists of vacancies, adapting my CV and sending off applications was a job in itself - but it was an agency that got me tons of short term placements to keep me afloat and then eventually got me into a good full time position.