Spacing for essays

<p>Hey, I'm going to be submitting college apps in the next few days like the rest of the world, and I'm wondering whether or not essays should be single or double spaced. Some supplements say things like, "about 250 words or half a page" implying single spaced, but other sources have recommended double spacing essays. I have already double spaced my personal statement, but I'm not sure if thats the correct thing to do. Advice is appreciated.</p>