If you're thinking about ways to update your wardrobe on a budget (and who isn't these days?) think about adding one great accessory, something that will work with everything and last beyond this season.  The simplest upgrade is a really fantastic bag.  Bags are fabulous because they always fit (unlike your jeans), they're practical (your cell phone has to go SOMEWHERE!), and the right bag can dress up even the most basic jeans-and-tee combo.