I think I know the best way to handle this, but was hoping for insight/confirmation:
A cousin of mine and his wife sent me a gift of two items from my registry. They are very generous to have done so and I immediately sent a thank you note, specifically listing that I'm looking forward to using each item for. Now, about a week later, a third gift has arrived from them (all purchased together but shipped separately, it seems).
Is the best gesture to write an additional thank you note here? I want to be prompt with whatever I end up doing so they know that this third present didn't get lost in the mail. Thanks all!