How to automate anything in Photoshop

• Go to the Window menu and choose Actions.
• A little palette will pop up with Photoshop actions already predefined. To use any predefined action, just select it and press the play button at the bottom. If you want to make your own, click the menu button in the upper righthand corner and choose New Action.
• Name your action, click OK, and then you'll automatically be in record mode. Anything you do in Photoshop will now be recorded, so perform any actions you want to automate and then click the stop button at the bottom of the actions palette.