Remember that your (soon to be) wife is your bestest friend. You will find that the pluses will outweigh any minuses by a long chalk. Just relax and enjoy the ride. My advice would be this; be kind to each other and remember to give each other a hug every day. Apart from keeping your zipper up, out of love and respect, you will find that you can do pretty much what you can do now, except with a loving companion. ...oh and congrats to you both.

NB: anyone willing to pick up your underpants and socks and wash them, just has to love you.