Formatting - Your post need not be a circus. If you are not good with formatting, then stick to a theme that is light and descent in colors and the post layout. If you are good with trying new stuff then use that skill to better express through colors, fonts and layouts. Avoid colors that are dark and fonts that are overtly bright.
Use simple vocabulary. Important is to reach their hearts not testing their literary skills.
Blogging is all about sharing; no matters if the blog post is written by you or not. Keep spreading the good vibes for your readers.