When you browse the web in a maximised window (say, if you're on a small monitor or netbook), you give up your ability to drag items, like images, to the desktop. Reader huh989 shows us how to easily get that feature back.
So the Windows 7 taskbar is pretty sweet, however it does have its limitations. The Quick Launch toolbar is missing by default in Win 7, but it's still available to use and is extremely handy for these cases.
After using this for a while, I found that the same concept could be expanded. For instance, say you want to download an image from a web page. Google Chrome allows drag and drop saving of images; however if Chrome is maximised, where are you going to put it? Enter the Quick Launch Toolbar (again)! Just create a new shortcut to the desktop, downloads folder or wherever, and drop it on into your Quick Launch bar. Then, you can just drag the image straight from Chrome to the desktop folder by dragging it to that icon.
This is useful to me since I use my desktop as a temporary workspace. I keep it clean except for what I am working on at that moment. You could use another location just as easily though if you so choose (just drag a shortcut from Explorer to the Quick Launch Toolbar). I've stripped my Quick Launch Toolbar of all other applications, opting to start them from the main taskbar or Start menu and added the Recycle Bin, my 'Super Control Panel', and the Desktop shortcut.
Note: There are lots and lots of ways to do similar things... like using Aero Shake, or previously mentioned Taskbar Items Pinner, or pinning folders to the taskbar. However, the way I highlighted above is the easiest and most useful to me.
A Magician's Tools: Save web images without the right mouse button [Hi, My Name is Blogston]