I use a lot of superglue, so when Mythbusters Adam Savage recorded a video on the glue, it was going to be worth a look. There's a lot of good advice in here, especially the baking soda trick, that also turns the glue into a filler.
He's a bit wooly on the origins of the glue and what makes it set though - but reading the comments clarifies matters a lot. Very entertaining though.