Jimbo is right, if you don't want to use beer (although it does work) you can buy slug bait at a nursery, I think it is more expensive then beer though and if it rains you have to reapply. Hey Pat B, I heard if you go to a barber or hairdresser and ask for them to save you some hair, and then sprinkle some around your plants it is supposed to keep deer away. I have never tried it though.
Mark