I learned a lesson today from a fellow PTA mom.
She and I put together a Volunteer Party at the school to recruit volunteers. After the rather successful event, she called me to thank me. She did not wait till I saw her at school the next day. She did not call me to ask me to do something for follow-up (which we still have to do). She called with the expressed purpose of thanking me. (Honestly, I thought she did more work than I did.)