Today is the start of Lent and is a day of fast and abstinence.
While I'd recommend going to mass today (As I did at the harrowing hour of 7AM today) contrary to popular belief today is NOT a Holy Day of Obligation. It is truly just the day that marks (literally) the start of lent.
Also check out BustedHalo's Pray, Fast, Give Calendar that helps walk you through some Lenten practices. A piece of today's Ash Wednesday's reflection:
What is it that holds us back from really living? What do we have to die to — or, at the very least, fast from — in order to liberate ourselves from our bad habits? What do we have to give of ourselves to others, to causes, to God, so that we may stretch ourselves into new ways of being? How does prayer center us into growth?
Also...BustedHalo asks you to Show Us Your Ash today by sending us a picture of your ashes. Here's mine: