But if you had 20 volunteers there isn't an excuse not to send a sincere and personal message of appreciation.
Each, I assume, contained a heartfelt message of appreciation and well-wishing, as mine did.
This is an essential part of Mother's Day, something she can keep and also an opportunity to leave her a short message of appreciation.
So far, the reaction has been hugely positive, with City fans flooding Twitter with messages of appreciation of the new design.
As a sign of the company's cult appeal, Twitter was flooded with condolences and messages of appreciation within minutes of the announcement of Mr Stobart's death in hospital in Coventry.
In one new ad in the series, from Singapore, special drones drop boxes of Coke onto construction sites manned by migrant workers; the Coke cans are wrapped in messages of appreciation from Singaporeans.
Adam Cathcart, an expert on North Korea at Queen's University Belfast, said it was not unheard of for Pyongyang's diplomats to attend meetings, such as those held by friendship organisations, but they usually did so to receive praise or messages of appreciation.
Once we assembled, I would instruct each to write a message of love, appreciation, memory, prayer (O.K., not likely with this crowd) or best wishes for the new year, and we would stuff the stockings with these messages.
-- (S) Brennan presented the King with a letter from President Obama expressing a personal message of friendship, appreciation for our close and collaborative relationship and concern over the disposition of Yemeni detainees at Guantanamo.
He also sent a message of love and appreciation my way, thanking me for how I had pushed him to dream, to imagine better, to never settle for the status quo.
A message of respect and appreciation.
