I think the team here at GrowVeg has done a great job providing solid information on ways to use leaves in your garden. Ben’s blog on Making Leaf Mold - Gardener's Gold (2011) opened a lively dialog on leaves, to which I added my experiences in Using Leaves in the Vegetable Garden (2013). Our tips (plus many more) made it into the 7 Ways to Use Leaves in Your Garden video, which may be the best five minutes you will ever spend as you contemplate what to do with this year’s crop of leaves.
No, but then there is no such thing as a slug-deterring mulch. In slug-prone environments, it is better to forego mulching, and either compost your leaves or manage them in a separate pile to produce leaf mold. Then, use the compost or leaf mold as soil amendments. Should there be slug eggs present in the compost or leaf mold, allowing it to dry in the sun for a few days will kill most of them. This is also a great job for chickens, who happily remove slugs and other creatures from leaf piles.