How often do you guys change:

Transmission fluid
Serpentine belt
Front shocks

My car is at 103,000 mi. Transmission fluid was last changed around 65,000 mi. All of the other components are stock.

 

For a digital copy of your Owner Manual follow the link in my sig.

 

Transmission fluid is good for the life of the vehicle, as per the owners manual that don pointed to - it has the maintenance schedule in it. Change the trans fluid earlier if you so wish - it likely will not make any difference except to your wallet.

As far as the other items, replace them as needed when they are worn out.

 

When you change the serpentine belt inspect the tensioner pulley.
Listen close for the timing chain ticking, it can be a sign the front guide is broken