I had myself this problem and I decided to find out how to fix this issue since it was driving me crazy. Hope this saves you time.
Explanation
Everytime you send an email from your BlackBerry or your gmail, a copy of that email arrives back to your BlackBerry inbox as email sent. All this comes because [...]

It seems that BerryReview found a great article that goes over some really cool BlackBerry Storm shortcuts.
Keyboard shortcuts

To switch back and forth between multitap and suretype while on portrait mode, simply hit the menu and navigate to the options to enable either one;
to bring up the keyboard, swipe your finger upward till the middle, and [...]

Vodafone U.K. took their time and released a series of How-To videos to their YouTube channel. The videos cover different aspect on the phone such as email setup, downloading applications and setting up your bluetooth.
View all videos here