We love our basil, strawberries, and other tender, green, leafy things. So do the slugs and snails! I am having good luck with the copper tape you can buy at the nursery in the pest control section: just wrap it around the flower pot so no slimy critters can cross. I think the tape cost about $7 for 15 feet, so that will get costly if you have large pots to line.
So, I looked in the plumbing secion. I wanted something copper and round to place around the stem of my plants, and I found copper plumber's tape, which costs $3 for 10 feet on amazon, and you use much less.
How do you protect your garden from slimy pests?