As a good English teacher, it's my responsibility to tell you what can happen to you today. Be forewarned:
Basically, what happens is Caesar gets all cocky about his awesomeness, and the Soothsayer warns him to beware March 15th (the "ides"...which actually happens every month, though not always on the 15th). Helpful household tip: you should always listen to a Soothsayer. But, Caesar didn't, and he got betrayed, assassinated, and all deadified, all because his response to "Beware the ides of March" was basically "schmeh."
So today is a day to watch your back, basically. But, you're watching your back...for yourself. Because the essence of the Ides is that when bad things happen on this day, it's your own darn fault for not paying attention enough to stay out of your own way.
So, good luck today. And, just in case no one else tells you, I will. Because I care about you.
Beware the ides of March!