Life is full of good habits and bad habits.
For Example:

GOOD HABIT: Playing catch with your dog. Click to Read about Good habits

BAD HABIT: Playing catch with your dog. Click to Read about Bad habits

Your website is no different.  There are plenty of good habits and bad habits you can use there as well.  One of the best habits you can adopt for your website is consistancy.  Consistency is the key to a clean, sharp website.  Keeping your website and it's content consistent can do wonders for the overall look of your site.