I try to use special purpose things for their intended use. Wood glue for wood, superglue for frets, epoxy for non repairables (grain filling, body points, etc.)
I dont use hide glue that much though... except for violins... like usually i'll build the whole thing with a dremel, wood glue, and poly stains but when i want to go through the authentic experience, i'll use chisels, planes, hide glue, shellac (its whats available... i dont have nitro), and wood dye.