I haven't done anything in particular, but I've noticed this week that they have the distinctive "collar" that tells me it's breeding season for the earthworms. I also buy worm castings, and need to put some out in the garden. I'm afraid worms in one of those long low bins would accidentally bake down here in the hot weather. I've heard about people keeping under-sink bins with worms and dropping peelings into it. Not sure how that works either.

SRS