Polish your letter until it sparkles and then proofread it carefully to catch any mistakes. If possible, ask someone else to proofread it too (since it seems to be impossible to catch all of one’s own errors) and then format it attractively.
Finally, print out the right number of copies of your letter and remember to do one for your archives.
The office Christmas party plans are beginning to crystalise: it’s wassail and fruit punch with a “King Winter” theme and we’ll decorate with the holly and ivy that I still have way too much of in my backyard. We’ll describe the food as “medieval” and it will be bread and cheese and pickled onions (which means it could also be described as “cheap”) leaving the bulk of the budget for the wassail.
 Which, unfortunately, seems to be true in life in general as well as in writing.
 Having too much text to fit on two pages is not a cue to use a tiny font: it’s a cue to cut.
 Or not. Carol’s hoarding mother has carbon copies of every letter she wrote in her youth and, although these may potentially have historical value one day, the copies of every bill she has ever received have less narrative interest.