My cousin, who also is my maid of honor, told me that if I register and have a bridal party, it will take away from my wedding gift. She said, for example, if someone buys me something for say, $100+ then for the day of my wedding that guest won't bring anything, like a card with cash in it. Is this true? How does this all work? Does a guest spend separate money on a gift thats on the registry, and also give a card with cash to the wedding?