Organize a workshop
The organization of a workshop requires a lot of discipline. Your participants expect a lot from you and your workshop. They could quickly identify organizational deficiencies.
You probably have thought of everything. Including, for instance, sharing a Zoutch ! that will allow your participants to organize carpooling to go to the workshop place.
Carpooling is just one example among many others. Zoutch! can make your life easier on many other subjects.