Identify an area where you notice a lot of snail activity. Snails usually hang out in wet or moist areas.
Fill your bowl halfway to the top with beer. This prevents the snails from floating back over the rim of the bowl.
Place the bowl on the ground in a place where it won't be seen. The snails are strongly attracted to the beer and will drown themselves in it.
Empty the old beer and dead snails. Now refill the bowl with fresh beer and your ready to go again. This is a very inexpensive, yet effective, safe way to eliminate snails around your home.