sickofmusic.com

Yeah i know you all know that crap, But still its always good to rethink your design using the guidelines for designing user interaction .

Link to the article

Here are few bits and bytes from the article:

The following principles, taken together, offer the interaction designer tremendous latitude in the evolution of a product without seriously disrupting those areas of consistency most important to the user.

Levels of consistency: The importance of maintaining strict consistency varies. The following list is ordered from those interface elements demanding the most faithful consistency effort to those demanding the least. Paradoxically, many people assume that the order of items one through five should be exactly the reverse, leading to applications that look alike, but act completely different in unpredictable ways:

Interpretation of user behavior, e. g., shortcut keys maintain their meanings.
Invisible structures.
Small visible structures.
The overall “look” of a single application or service–splash screens, design elements.
A suite of products.
In-house consistency.
Platform-consistency.