7 Deadly Sins of Website Design

1. Gluttony - Bloated Stylesheets and Markup
2. Lust - Overuse of “cool” javascript or CSS effects.
3. Envy - Copying Apple or other high-profile websites
4. Wrath - Defying standard web conventions for no practical reasons. Such as not using tables for tabular data.
5. Sloth - Making a bunch of special cases in your Design or Code rather than redesigning.
6. Greed - Selling out with deplorable advertising tactics like pop-ups, In-text Advertising, and animations.
7. Pride - Keeping a design well past its expiration or making design elements unquestionable.