Part 1: The ProblemAppreciation of the power of the written (or texted, "tweeted," updated, emailed, or "Skyped") word, and also of the permanency of electronic communication is vital to one's social survival in the 21st century.
It is also vital to your college admission prospects.
I have received so many egregious abuses of email correspondence from prospective students that I felt compelled to offer some friendly advice. Hopefully it will save you from some embarrassment (and me from developing an ulcer).
Some choice examples can be found at the bottom of this post (or you can skip to "Pt. 2: The Solution" if you already recognize your faults and don't care to read my diatribe).