• DO brush your cat often.
• DON'T bathe cats frequently.
• DO use cat conditioning rinse after bathing.
• DO add 1/8 teaspoon fresh fish oil to nutritionally complete food every other day.
• DO get a checkup twice a year.

Keep in mind that this could be a symptom of a health issue. If things don't improve after dietary changes and adding fish oil or omega 3 it's time to see the vet just to make sure.