In need of a spring shopping spree

I'm so tired of every single outfit I own.  It either needs to warm up enough to pull out all my summer stuff or drop a big load of cash at my door.  I don't really have any good long sleeved things that aren't sweaters.  Tired of my clothes, and since I'm broke like most everyone these days... I need your advice.  How can I spice up my junk without spending much??