It's not your decision as to whether or not you have a bridal shower. You keep your mouth shut unless someone says something - if someone offers you one and you don't want it, thank them but politely refuse it.
You NEVER, EVER put anything like "If you cannot make it to the wedding but would like to give a card, send it to...." That is SO RUDE. You NEVER mention anything about gifts or cards on a wedding invitation/announcement, even if it's to say "No gifts/cards, please." DO NOT be so rude as to print this on your invitations or announcements. If someone wants to send you a card or gift, then they'll do so on their own, without prompting from you. If they need your address, then they'll ask you or your family members, or they'll simply refer to the return address label on your invites/announcements/last year's Christmas card.
You NEVER explain to someone that they are not invited to your wedding. You are entitled to invite whomever you please and have any kind of wedding you want, and you don't owe anyone an explanation as to why they're not invited. It's *extremely* rude to point out to them that they're not invited. You just don't send them an invitation - period, end of story. If they are rude enough to ask you if they're invited or why they're not invited, you just reply with something like, "We wanted to keep it small" or "We couldn't possibly have invited everyone we love!" And then you change the topic or you walk away.
Wording for the invitations:
The pleasure of your company is requested
at the wedding of
Jane Anne Smith
and
Thomas Andrew Jones
date
time
place
RSVP info
(and for a destination wedding, I'd also include a separate card or two with details about hotel and flight information, and things like that)
Wording for announcements:
Jane Anne Smith
and
Thomas Andrew Jones
joyfully announce that they were united in marriage
Saturday, August 17, 2013
Negril, Jamaica
The newlyweds will reside at
123 Main Street
Anytown, State, ZIP Code
(and you can include a photo if you'd like)