So why don't you get yourself something nice? I would suggest this adorable t-shirt depicting Phil ("Phil Connors?!") stealing Punxsutawney Phil, the groundhog.
If you've never seen this hilarious, wonderful movie about a man who gets stuck in a time loop and relives the same day over and over, who gets second and third and hundredth chances to get it right, stop right there and go watch it before today, the actual Groundhog Day, is over. Unless you don't like comedies where, amidst the incredible laughs that can be wrung out of such a silly situation, and a surprising streak of hopelessness, the main character's heart thaws and he becomes a better human being.
My favorite line: "What if there is no tomorrow? There wasn't one today!"
There are also some great Groundhog Day designs at RedBubble, which is having a 20% off sale today sitewide with coupon code CELEBR8.