I think the weather has a large bearing on work. As we know it's been horrible weather since Christmas and for sure once the sun comes out and the temperature picks up, then the guys get phoning more.
Also, the current economic climate doesn't help and we are still hearing sad stories of redundancies, job losses etc.
Fortunately, if you have regulars, these can keep things ticking over.
It's also worth blogging, updating website/aw content, photos and perhaps even offer some temporary special offer to entice more work.
Good luck.
Love
Jen