There are often specialist recruitment firms for professional industries like law and accounting.

Generally they are smaller recruitment firms and have a good grasp of a particular market and are willing to have you come in for a chat and see if they have anything that you fit into.

Maybe think of what sort of industry you work in and then have a look.

I know that law firms are always looking for more mature reliable administrative assistants.

Also tell all your friends that you are looking for a job and get DH to tell everyone he knows too - it is amazing what comes out of the woodwork if people know that you are looking.