I have a SIL who went against a number of etiquette norms for her wedding (cash bar, Jack and Jill fundraiser, honeymoon registry, etc.) as well as a number of traditions that I find tacky including a dollar dance and a garter/bouquet toss where she yelled out the names of the "single" people she felt should be participating (which included FI and I).
She's a nice person but has some rude tendencies, which I overlook for the most part because I know she means well. But as I plan my own wedding, she is frequently asking about why I am not doing things the way she did (ie. why would anyone not have a cash bar or Jack and Jill like she did). My gut reaction is to scoff and let her know how rude such activities are, but I don't want to make a bride think that people might have thought her wedding was ill-conceived.
Is there a gracious way to communicate my plans to her, or do you think that she could benefit from knowing where her actions violated etiquette? She is not one for whom "bean dipping" will work, she will push to hear why it is that FI and I are not conducting our wedding in the same way she did.