Host an impromptu lunch for 15.
Go to Wembley to watch England play the USA with 10 other members of your family and a friend's son and his friend.
Turn up for a fitting for your bridesmaids' dresses to find that they've accidentally cancelled your appointment and the dresses are at another shop 50 miles away (all sorted now).
Move out of your bedroom to make room for the latest guests and prepare to spend your last two nights as a single woman sleeping on the floor in the sitting room.
Realise when the washing machine goes into its final spin at 1:00 am that it's actually quite noisy and you're not going to be very popular if it wakes your nephews. Wonder how you're going to get the rest of the bedding washed and dried in preparation for lending your house to a family of nine while on honeymoon.
And now I must empty the washing machine and see if I can get some sleep...