Apart from being a school boy with a three day weekend (my school year always started in mid-August), I never much cared for this holiday. It sounds Marxist. It's basically our softer and older version of the International May Labor Day (which incidentally commemorates events that took place in the U.S., but I suppose we didn't need two labor days in this country)
It really doesn't affect my life too much now that automatic and internet banking are so pervasive and I often forget to get my snail-mail for days. Also many, if not most, retail stores still open their doors, and even have sales. As a student I can still do my work on Federal holidays (and often have to). When I graduate, I can bill for work on weekends and holidays just the same as work done on other days. So all in all, my only complaint is that it just leaves a bad ideological taste in my mouth.
Tangent: the discussion Matt had about capitalism with some Yugoslavian youths made me sad inside.
In other news: time to put away those white dinner jackets and linen suits. I don't care who says the rules have changed.