Slugs. Why did it have to be slugs?

In order to gain gardening tips and maybe some advice on what to do about the hordes of savage slugs and snails (and probably puppy dog tails) that are currently ravaging my radishes, we watched River Cottage Spring -- Hugh Fearnly Posh-Bloke's guide to smallholding and vegetable gardening. Apparently, the best way of growing your own veggies is to give up your job in London, develop a thriving career as a food writer, and employ a farm manager and plenty of staff to do the actual farming. Not desperately helpful, it must be said.