Chuck Palahniuk doles out some solid writing advice:

From this point forward – at least for the next half year – you may not use “thought” verbs. These include: Thinks, Knows, Understands, Realizes, Believes, Wants, Remembers, Imagines, Desires, and a hundred others you love to use.

The list should also include: Loves and Hates.

And it should include: Is and Has, but we’ll get to those, later.

Until some time around Christmas, you can’t write: Kenny wondered if Monica didn’t like him going out at night…”