Tack on attachments up to a total message size of 10MB – or double that (20MB) for Yahoo! Mail Plus. Here's how:

1. Click the first Browse button.
2. In the window that opens and shows you everything on your computer, locate the first file you want to attach. Double-click it!
3. If you're done, click the Attach Files button at the bottom of the page. If you want to keep on attaching, just click the next Browse button down. Find the next file you want to add, and double-click it. And so on...
   • If you run out of Browse buttons and still have room (10MB total message size, or 20MB for Yahoo! Mail Plus – interested?), you can add even more files by clicking Attach More Files.
   • When you really are done, click the Attach Files button at the bottom of the page.