We had a casual, small wedding in October (70 people in all). It was sort-of a destination wedding - near San Antonio, we live near Houston. So, EVERYONE traveled whether driving a couple hours or flying in from out of state. I'm writing the Thank You cards now and realize a couple folks who came to the wedding didn't bring or send a gift. I'm happy they came though! Should I still write a note to say thank you for joining us on our special day?