Getting ready to put together an invite? Make sure you send them out at least six weeks before the wedding date. 
RSVP cards should have an RSVP date at least 3 weeks before the date and there are various other rules
when it comes to wedding invite etiquette. Check out The Knot's Q&A here.  If you're planning on getting
them personally designed, make sure you give the designer a good 2 months before you want to mail them.

Things to include are:
- RSVP card
- Map
- Info about ceremony, reception
- Details about hotels and registry