You can now use (all) with the save list command like:
For the formspring.me plugin I made, I just used this but I figured since we are running through keywords I would just make it
savelist:var.searchterm
that way they it'll automatically make niche lists for each of your searches, campaigns, etc...
only downside is if you don't like seeing 100 list files in that folder and you'll likely get repeat names on different lists.