You don't need Photoshop or some other advanced piece of software to resize a large number of images at once. You can use Microsoft Office Picture Manager which is part of the Office suite.
You just bought Nexus 4 and you don't know anything about Android operating system, so I will guide you through literally first steps on this great phone.
If you are fed up with appearance of your Google Chrome then this is a lesson for you. I will show you how you can easily change your Google Chrome look.