A spell check could change many things. Just use meta-writing tools!
I just finished reviewing a writeup. It was full of spelling errors, sloppy sentences, and annoying spacing and syntax errors. Flat out ugly! It is simply not in the best interest of you to send a colleague hastily written stuff. This is not just true for "official" writing like memos, papers or theses; but also true even for your emails or instant messages -- IMHO. Here are some of the reasons: (First) Impression is Almost Everything: This has become a rule of thumb for the modern society, but, it seems that we just forget it. When a reviewer reads a sloppily written document, the likelihood that (s)he giving a positive rating about your document is very close to zero. Your Writing is Who You Are Inside: What you write eventually originates from your who you are inside. If you are an organized well-disciplined person, this will reflect on your writing too. Writings of people who think clearly tend to have clarity and brevity -- both good features of writing. Your Wri...