If you are feeling artistic, photo collages are easy to make and interesting to look at. You can take all of the photos from a spring break trip, or from the semester's parties, and throw them into a box frame. If you have some interesting post cards, space them evenly apart on the wall and you'll have a good conversation piece. You can also use art postcards of a particular artist or style to create a gallery effect. Construction paper cut into strips looks great around windows or door frames, adding color and making the room seem less institutional.
Wall clocks are also great for breaking up wall space, being both useful and distinctive.
You don't have to hang things all over the place to make your room homey. Try painting walls in different colors to eliminate the institutional feel. Instead of posters, Patil opted to paint her walls in her favorite shades . However you decide to decorate your walls, remember that college is a great opportunity to explore wild and creative ideas. If you don't like it, try something new next year.