I'm with toasted, you gotta try stuff. Grab a brew, sit on the floor with bass, in front of pedals and play, should take ages even with a few pedals, and it's good fun, often resulting in some pleasent suprises!
As said many times before, octave first, ain't nowt worse than a flailing octave effect!
I will be doing just that when my new [u]meat[/u]y filter arrives, should be here today, I'm going to have a [u]ball[/u]
T