Love the Best Man Sandwich idea. Your fiancé's best friend adores you for numerous reasons and you've made his pal the luckiest guy in the entire world by agreeing to marry him. So come here for a hug, already.
While the two of you are the most important people at a wedding, half the fun is being able to celebrate and anticipate your big day with your closest friends by your side serving as bridesmaids and groomsmen. While you might think you can just grab your