Advice v. Advise

Many of you may be aware that these two words exist, but don't know how to distinguish one from the other. I often see the two being used interchangeably.

Advice
This is the noun form, which according to Dictionary.com means an opinion or recommendation offered as a guide to action. Example:

My father always give me good advice.

Following my neighbor's advice, I cleaned up my surroundings to get rid of dengue-carrying mosquitoes.

Advise
This is the verb from, which according to Dictionary.com means to give counsel to, offer an opinion or recommendation or suggestion worth following. Example:

The doctor advised him against eating too much chocolates.

My parents advised us when they would be arriving.