starry15:crazylake,
When I joined pv last time, it was the ex- ex principal so probably not the same. I guess you need to highlight your strength and the areas in which you can help. For e.g. if you're SAHM, you can tell them your hours are flexible and can come in as and when required for contact time (one hr every week on Wed). I heard a parent can take professional photographs so she volunteered to be photographers on special events. Another was an artist and she volunteered in some art project.
Not so sure about RS Society. You could also explore Grassroot which be more flexible.
Thanks starry15, only now i feel i should learn more to qualify for a PV

myself is full time working engineer and hubby bio scientist, was surgery doctor before, if highlight this got any better chance? we are staying within 1km...