One of the joys of my job is when I am taught something by my clients.  That happens quite often!

This client gave me a tip on how to prevent slug damage to tender perennials particularly her hostas.

Beer I asked?

No, she uses a much cleaner technique by cutting off a small-needled branch of her old Christmas tree and placing around the base of the plant.  Slugs do not like the scratchiness of the pine needle on their tender bellies.