My live rig includes the Launchpad. My songs contain about 25 - 30 tracks per song, so I split the stems into 4 stems, music/synth, drums/percussion, effects/misc, and leads.
I'd like to find some effect plugins - similar to tape stop, (which I already have), chorus effects, just to throw on the song here and there. Any suggestions for great (hopefully free) plugins that make your live performance more fun?