To be honest I really didn't keep track of the cost as I was going along but I estimate it was probably somewhere in the ballpark of $7.00 per invite plus postage. I only needed 25 invites but ended up making 30 just in case I needed extras plus I wanted to have one for myself as a keepsake.
Oh my goodness - you're less than a month away now! The time is going to go by so fast! It will be here before yo know it!!