My sister shared this site with me: Paperless Post is like a better quality, higher class Evite (i.e. not as tacky and with no advertisements attached). While it might not replace the traditional paper invitation, sending an e-vitation will both reduce paper waste and save you money. It’s free to sign up and free to send your first 25 invitations, then you purchase virtual “stamps” to send anywhere from 20 more (for only $4) to 1000 (for only $50). It would cost you $440 to send 1000 invitations via snail mail! (Although if you can afford to have 1000 people at your wedding, I guess you don’t really care about the cost of stamps, do you?)
Check them out, whether it be for your next backyard BBQ or for your save-the-dates!