How do you make one curve guide effect only one mesh’s particles?
Group all the curve guides for that particular object and enter name of the group in Particles/Particle Motion/GR:
I had as much, I just don’t know where the “groups” are. How do you group things?
Nice avatar, by the way.
Groups are managed in object mode, select the object, F7 - Object/Object and Links/Add to Group/ADD NEW
Name the group and then add other curves to the same group. One object can belong to more groups, so if you have some global curve guide, just add it to all perobject groups.
Nice avatar to you too 
Yeah, I just found all that on the blender page… I forgot that whole feature existed. By the way, I’m trying to do V’s hair with this. It’ pretty hard…