Here are a couple of links to websites that give some great tips for using less data on your browsers with your internet sticks. Check them out!
Also, here are some tips for having your browser not automatically load images to save data.
Chrome: Open the Settings screen, click Show advanced settings at the
bottom, and click the Content Settings button under Privacy. Select Do
not show any images.
Firefox: Open the Options window, click the Content icon, and uncheck
Load images automatically.
Internet Explorer: Open the Internet Options window, click the
Advanced tab, scroll down to the Multimedia section, and uncheck Show
Opera: Open the Preferences window, click the Webpages tab, and select
No Images in the Images box.