More than $1 billion will be spent on weddings this weekend

This Saturday is the most popular wedding day of the year, according to data released by the Knot. Almost 30,000 couples are set to marry, with associated guests spending an estimated $1 billion on gifts and attire for the happy events, says the site.In advance of this very hectic day, the multiplatform wedding-planning brand (part of XO Group Inc.) released its 2018 Guest Study on Tuesday, revealing average attendee expenses per wedding, as well as factors contributing to whether invitees accep