If you are mostly using only one resample image option when resizing images, then you can change the default option to the option you are using the most.
Fun, yet very useful tutorial, where you manipulate a photo in a way it will look like you're standing next to Brad Pitt or any other person in that matter.
With the new version of Photoshop, you also get a new cropping tool called Perspective Crop Tool which will change the perspective on a image. Check it out, it really is a cool tool.
