Do you use the Mail application in OS 10.3 or 10.4? Do you frequently send attachments? If so, this tip is dedicated to you. Actually, it’s one the most popular tips we share in our Mac Basics classes. Even many advanced Mac users don’t seem know about it.
“If you want to attach a file to an email message, you can drag the file directly to Mail’s icon in your Dock. This opens Mail and creates a brand-new email message window with that file already attached. Sweet! Better yet, even if you drag multiple attachments, they all attach to just one email message (rather than creating one message for each attachment, as in previous versions of Mac OS X).”
Try it! It works great. It also works with Entourage… though I still prefer OS X Mail.