We had ant problems for a few years, tried lots of stuff, then we found the little round ant stations that Wilko sold, bingo, after a few days, no ants, and none since, and that was a few years ago. We do keep an ant station in the cupboard, though, just in case.
I hate creepy crawlies, but strangely, whilst slugs make me go YUCK!, for some reason snails don`t bother me, even though I know they`re still a slug, but with a shell on it`s back. Maybe it`s the attractive looking shells?
Where we used to live, in Lancashire, we were plagued with earwigs in the summer, double and triple YUCK! We don`t seem to get them here in Lincolnshire.