I liked Katrina's thoughts on using different presets and actions to change the mood of a photo. I use them all the time and love to take an older image and change the original feel of it.
This picture of Jackson on the beach was originally pretty saturated and more golden because it was late in the day. I used an action by Paint the Moon to soften and mute the tones and give more emphasis to his wet fur.

Katie Pertiet
Remember You Layered Template
Good Day Paper Pack
Messy Stamped Alpha
Little Bits Alpha

Anna Aspnes
Naturelle Element Set

Lynn Grieveson
Worn Hearts

Ali Edwards
Photography Words