Forget the salt. Yes, it kills them, but it also kills your carpets, your grout, and your soul when you clean up the disgusting mess. You want a barrier, not a chemical weapon. Try Diatomaceous Earth (the food-grade kind). It’s like flour, but for slugs, it’s like walking on a thousand microscopic razor blades. Oh, the horror! Sprinkle a line of it across your door threshold.
Another weird trick? Copper tape. Slugs get a tiny electric shock when they touch copper. It sounds like science fiction, but it works. Put it around your potted plants or along the base of your back door. They hit it, they get a tingle, and they go eat your neighbor's petunias instead.
Don't pour beer traps inside the house. Please. I tried it. The smell is awful, you have to empty a bowl of dead slugs, and you’re just inviting more from the outside to come to the "party." It’s a slaughterhouse with a beer discount. Keep that nonsense in the garden.
How To Stop Slugs In The House (step-by-step Guide) | TAFT Independent