If you want to keep tabs on an important email thread, enable notifications for it.
Just hit the flag button from the Message window and choose Notify Me.
You can also enable notifications when you create a message by tapping the bell icon in the subject line.
Now, every time someone responds, you'll get an alert.
There's also an easy way to annotate attachments.
This is great for the times that you need to get work done away from your desk.
Just open the attachment, tap the toolbox, and you'll go into editing mode.
You can do things like draw Draw, type, and even sign a document.
When you're done marking up the attachment, tap the Done button and it'll be included in a new reply message.
And finally, there's a great trick for quickly seeing all of your unsent draft messages.
Tap and hold the compose icon, and choose a message from the list to pick up where you left off.
For more tech tips visit cnet.com/howto.
In San Francisco, I'm Sharon Profis, CNET.
COM for CBS News.