Here is another quick idea for you on volunteer management.
Make the office facilities and work location as attractive as possible for your volunteers.
Challenge yourself and your volunteers to come up with low-cost creative ideas to improve the attractiveness of the facilities.
A pleasant setting can lift the spirit!
HUNDREDS OF IDEAS FOR VOLUNTEER MANAGERS
This is another great idea for you from the two best-selling books full of ideas on Managing Volunteers, as well as Volunteer Recruitment, Volunteer Recognition and Retention for those in Volunteer Management.