These are just a few tips for writing. More may be added.
  1. Learn grammar.
    Seriously. Do it. Learn how to write technically and the editing process will be a lot less painful.
  2. Show AND tell.
    Some situations call for implication, some call for details. Determine which one it is.
  3. Each scene should do something.
    A scene needs to do something. Develop characters, show personality, further the conflict, whatever. Just don't let it be passive and pointless.
  4. Write everyday.
    No matter your medium, just keep writing.
  5. Use active, clear words.
    Words that don't do much or don't conjure up an image should be used sparingly.