Seventeen

Three dots only. Eg: ... and not ................ or ..

No more than ONE punctuation mark, except for a questioning exclamation, where the question mark precedes the exclamation mark. Like this: ?!

Reading about your character's life at Hogwarts is boring if you're just going to sit and describe the everyday.

Normal names exist. No need to be schmancy.

Families with a standard income also exist. You don't have to be ridiculously poor or ridiculously rich.