I am planning my sister's shower. She is having a small-ish wedding out of town. I got married a year ago and had a much larger wedding and guest list. My mom is pushing to invite people to my sister's shower who aren't invited to her wedding because they were invited to my bridal shower and my mom has gone to all of their daughters' showers. It's my understanding that if people aren't invited to the wedding they shouldn't be invited to the shower. Thoughts? Can the exception be made for smaller weddings?