Things not to do

When one has spent months getting all spreadsheet-happy about the wedding, and one has 5 worksheets of various sizes and descriptions, and one is feeling very smug about the clever ways in which one used conditional formatting to make pretty colored columns showing how many adults are eating from which category and how many children, one should not (on the evening of Monday, some 12 hours after one gave the caterers the really-now-we’re-not-kidding Final Headcount) realize that the reason the number of people getting seated is 2 people off from the number of people on the guest list is because on the guest list one didn’t include the Bride and Groom. “Oops.”