Clean up your browser's cache and cookies

Deleting browsers caches and cookies will clean up your Blackberry, and maybe even make your web browsing a bit faster.
Caches are meant to improve browsing speed, but they can easily get clogged up and require purging once in a while.
While you're in your browser, press the "Menu" button, go to "Cache Operations" and then clear History, Cookies, Pushed Content, and Cache