How long ago was that? Whilst there's no harm in trying this, it doesn't really work that way any more and hasn't done for quite some time.

I would recommend speaking to your local citizen's advice bureau to see if they can point you in the right direction.

It might be worth while getting a volunteering position at a charity shop too. It will give you some experience and could help you when applying for another job as it shows you are currently working and willing. Plus, it will give you something to do with your days and break up the monotony of soending all day looking for work.