my nephew put his slippers on yesterday morning (bare feet) and there was a huge fat slug in one of em

There are loads of them about at the moment, sheltering under pots and cabbage leaves etc, all over my chilli pots Might be a good time for a blitz. I chuck em on the unruly patch next to mine. I shouldn't really as I might end up with that plot in due course

Wait until there is a good hard frost and then just move everything a little bit - freeze the boogers to death.

Any idea what slug eggs look like? If they lay eggs that is I found clusters of little whitish roundish eggs yesterday when clearing ground Left them in the open for birds to help themselves

yup, that sounds like them.