- There is very little you can do to completely cover your computer usage from a savvy user or technology professional.
- When in doubt refer to the above and go to the library or other location where you can use a public computer.
- Certain browsers are better then others about deleting your usage history. Mozilla Firefox does a good job while Internet Explorer is notoriously bad, keeping temporary files even after you have asked for them to be deleted.
Reduce the risk of your browsing history being easily discovered by following these guides:
This Guide is an excellent resource
This Guide is a good step by step guide for Firefox.
This page from NYU is a good guide for Safari.