Vac!

The box on my calendar for today reads Vac! This is short for vacation; it's the spring holiday at the boys' schools. The box for next Tuesday reads Salsa: vacc, which is my personal shorthand for vaccination, Salsa the dog being due for one. Other boxes for the month contain

Mom bday, RIP = mother's birthday, rest in peace
WSW game = Winston-Salem Warthogs game (local baseball)
Saw start = Sawtooth Center class starts
OFF = husband has day off
ON = husband works this day
LifeSci = Museum of Life and Sciences (in Durham)
IRS = Internal Revenue Service, personal taxes being due the 15th of April
To Acct = drop papers off to accountant re: the above
barn = riding, driving, or horsemanship class for oldest that day
hema/lab = short check-in hematology appointment for the youngest

I have other notations as well that would never make any sense to anyone other than myself. Letters standing solo, sometimes with question marks. Phone numbers floating. I am forced by the small size of the daily box to

abbreviate
verb
1. To make shorter.
2. To reduce (a word or phrase) to a shorter form intended to represent the full form.
[Middle English abbreviaten, from Late Latin abbreviāre, abbreviāt- : ad-, ad- + breviāre, to shorten (from brevis, short).]
"abbreviate." The American Heritage® Dictionary of the English Language, Fourth Edition. Houghton Mifflin Company, 2004. Answers.com 05 Apr. 2006. http://www.answers.com/topic/abbreviate