My usual method of snail and slug control is a late afternoon watering, followed by a 10:30 pm search-and-destroy mission. Use a headlamp, rubber gloves, and a bucket. Slugs are pretty slippery, so a piercing instrument will be useful.
If you have earwigs disfiguring the segments of the flowers or destroying the pollen, take along a pair of hemostats for a quick grab-and-squeeze. This will really sharpen your skillz, because at the slightest disturbance, they'll run and drop to the ground for a quick escape.
For the less squeamish who wonder why gloves are necessary—I don't remember the source or the particulars—I read that terrestrial mollusks commonly carry a nasty parasite that can cause big problems for humans.
