You won’t be able to remove everything; however, a smart gardener might think of each hiding spot as a trap. The underside of a board will attract nearby snails for easy removal at your convenience. An inverted melon will do the same. A small cup filled with beer will trap and drown them. Make a regular practice of trapping and removing snails and slugs from these hiding places.
Switching from a sprinkler to drip irrigation will reduce moist surfaces and make the area less desirable. A copper barrier around your plants will kill them by short-circuiting their nervous system.
Though baits can be part of a management program, it is better to use them in conjunction with these simple garden modifications.