If you've been, you'll know what I mean. It wafts up from the metro and consists of: blocked drains 30 per cent. something like burnt paper, about 20 per cent.
Guests should have at least four weeks to consider the invitation before the RSVP-by date, which, in turn, is usually one to two weeks before the wedding (ask your caterers when they need a final count).
A recent trend has been to ask your guests to RSVP on your wedding website and include a URL of the site on your invitation. Wedding etiquette will always be to send a printed response card but you have to decide what is right for you.