It isn't nearly the bother one might think. Depending on the spirit, they are either tied to a place or an object, occasionally a person. Many wander, however. It's much like being alive. We're all carried along by our own tides. But I try my best to help those who might cross my path and seek my aid, even here.
The simple fact of the matter is that this enterprise doesn't typically yield monetary gain, which wasn't a concern until my aforementioned best friend arrived with the need of worldly things.