This is one of those holidays where it really doesn't matter if you don't have an ounce — or a pint, rather — of Irish in you. It's a day to thank your lucky stars, look for four-leaf clovers, dance in parades, and drink plenty of Guinness. Or, if you're like us, it's a great excuse to look at really pretty green dresses — like Jessica Chastain in her bright Kelly green number — and promptly shop for one of our own. It just so happens that green is a gorgeous color for this Spring, thanks to the current obsession with bold hues, and it feels totally fresh in a blooming season. So shop our widget for a number of green dresses that make us feel pretty darn lucky.