Keeping a worm farm is an easy project
Worm castings -- AKA poop -- add valuable nutrients to the soil and is easy to make. The hardest part is making the bin and that's not difficult.
OSU research indicates that the less toxic iron phosphate containing slug baits are as effective as those with metaldehyde.
Control plant-eating mollusks early and often
Home remedies have shown some effectiveness against many garden pests and diseases.