let's see....
first off-at the beggining of my efx chain there's markbass compressore,and at the end of it,there's MXR M80-both o' them NEVER off(colour switch on m80 on most of the time),and i believe i don't have to explain why
morley pba dual2 bass wah-although it acts differently with different basses.I LOVE this beauty-good for gaining on clarity during bass solo,or just to cut through mix at a certain point of the song,and,ofc,as a standard funky tool.
EHX octave multiplexer-primary for dynamics during the chorus part,or bridge part,sometimes even to 'fatten' the sound during a guitar solo
all other efx are being used as well,but these are my must-have-on-a-gig