Raise your garden beds. The surface of a raised bed dries out more quickly from a rainstorm making it a less attractive place for slugs to hang out. Hand picking is an excellent remedy. If the slime on the slugs bothers you use gloves. Put them in a container with a screw top lid and toss them in the garbage.
Coffee grounds are very unpleasant to slugs.
The old stand by of beer in yogurt containers works well. Cut a rectangular opening on two sides of the yogurt cup just below the opening. The put the lid on and bury the container with the bottom of the slits just above the soil line. All rights reserved. Not responsible for typographical errors or omissions.