I got a very generous gift today at work and the gift was signed "from staff". I know when my boss got married we were given the option to chip in for her gift, but the money wasn't really traceable back to a certain person. She sent out a thank you email to everyone.
So I got this gift and I don't know who pitched in or if it is from the company or what. So I wrote a thank you email to everyone. Should I write thank you cards to each person? Even though I don't know who contributed? Help!