You’ve announced your engagement to your family. You called your best friends to tell them the news, and now you’ve made the obligatory Facebook post informing the digital world that you’re engaged. Congrats! You’re probably thinking what is next and the thought of an engagement party might be crossing your mind. You know there are already a lot of events that come with a wedding—a bridal shower, bachelor and bachelorette parties, etc.—so should you add another one to the list?...