Always order extra invitations! Without fail, at least half of our clients have come back to us for additional invitations. Sometimes there are more refusals than expected and a second round of invitations can be sent out, or just long lost relatives who were missed off the original list and only get spotted later on. Also, spelling errors and typos, mislaid post etc. can all mean that your invitations get used up pretty quickly. It is cheaper and less hassle to order extras in the first place and we would highly recommend it!
If you have a lengthy B-list, consider ordering a second set of invitations with a later RSVP date. And even if you’re hiring a calligrapher to address your invitations, ask for extra envelopes in case of returned invites or addressing mistakes.
When it comes to ordering your on the day stationery a couple of extra place cards may come in handy to pre-empt any last-minute changes.