Google is a great resource for finding images, but the way it presents results isn't exactly practical. Specifically, an image search returns a lengthy batch of thumbnails, each of which requires a click-through (or two) to see the full-size image.
Google Image Ripper bypasses the thumbnails, presenting you with all the matching images in a single Web page. It's a much more efficient way to search.
All you do is type in your word or phrase, then choose a desired size (from icon to huge), a type (news, face, clipart, etc.), and whether the results should include "nsfw" (not safe for work) images.
Click Rip Google and presto: The images appear, ready for whatever you plan to do with them. (Note that you can still click an image to load its source page, just like clicking a regular image-search thumbnail.)
Give it a try the next time you go trawling for images!