There are several ways to be safer when using the Internet, avoiding to leave traces of your activity, a very useful application can be this one named Mask Surf Standard.
Mask Surf Standard is very easy to use and it will keep the privacy of your IP when using Internet Explorer, Mozilla Firefox or Netscape.
Mask Surf Standard is run in the background, so you will not notice it is protecting you, but you'll know you are a bit safer than before. If you want, you can change settings, although if you let it as it comes, yo'll be protected enough.
25-day trial version