Here’s a simple but very useful tip for saving all attachments from a given message in Mail. Now, granted, this isn’t a task that’s all that hard anyway: just click the Save drop-down menu, select Save All, and then navigate the Save dialog box to choose a save location. (In OS X 10.3, it’s even easier—just click the Save All button and choose a save location).
However, some people prefer to use drag-and-drop—especially those who like to first save attachments to their desktops, and then file them as they deal with each one. Mail works well if you drag one attachment from the message pane to the Desktop (or any folder). But try it with two or more attachments selected, and you wind up with a clipping file in the destination folder, not multiple attachments. You could, of course, drag each attachment separately, but that’s time consuming, to say the least.