I agree that a temping agency could be a good way of getting a first job. They will interview you and then match you up to a suitable role. this could be easier than having to apply for lots of jobs. It is also wise to look for jobs at the local job centre and in local papers as well, although these may be more likely to need experienced people.
If you have no experience, then doing some voluntary work while looking for a job could be a wise move. This will enable you to put on your CV that you have worked and will also show that you are keen to work.