Weather permitting, we plan to hold our wedding outside. it will be October, so this will all be weather permitting. We also plan to rent multiple space heaters. Its going to be a pretty laid back wedding, with a bonfire during the reception, and while I plan to do lots of word of mouth, Id love a way state it (on the invitations, direction cards, RSVP card, seperate insert) that it will be outside, business casual attire is totally acceptable, and to dress warm.