It really didn't take a whole lot to improve the look of my bedroom, considering I started with a blank slate. (I'm a bit on the stingy side, so I have a hard time spending a lot of money on something that's just going to hang on my wall.)
The curtains, wreath, and some of the pillows are homemade. The comforter was on clearance at Macy's (about $300 off) so I couldn't pass it up.
Book Wreath Tutorial found here. (Instead of a foam wreath, I used a piece of cardboard that I cut into a circle. It worked about the same.)