Hmmm. Teaching obligations make it harder. Otherwise I'd suggest taking every holiday you can think of:

Epiphany/Twelfth Night
Martin Luther King Day
Imboloc/Candlemas
Presidents Day -- aw, heck! Take Lincoln's Birthday and Washingston's Birthday separately!
Valentine's Day
St. David's Day
Easter Monday (a fine Italian tradition - great day for picnics)
Anzac Day
....


:)