I am an avid Real Simple reader. My mom gifts me a year-long subscription every year at Christmas (thanks Mom!) and it always makes my day when a new issue arrives in the mail. They recently posted an amazing tip etiquette guide on their website that covers everything from tips for bartenders to bell hops to psychics. Check the full guide out here, but I found the "Special Event" category below especially helpful with an upcoming wedding. They also published more detailed wedding tip policies here.
I'm an Anthropologie girl in a corporate world.