I use an old-school 3373 (replaced by the Bogen Nano) and chopped the legs in half to reduce the footprint for FOB/stage-lip/onstage.
I'd like to get a 2nd 3373/Nano and not chop the legs for certain situations but can't justify the cost yet.
I've seen some sweet, sub-4' light-stands on-stage recently that have a very small footprint. Maybe 12"-14".
Damn you, OP for having me think about multi-track possibilities...