What Other Ways Can You think Of To Stay Off The Grid By Using The Grid?

On the TV show Hunted, where contestants try to avoid capture for 28 days, one group tries to stay off the grid by using the grid in a special way.

The guys create a Gmail account that is just numbers and letters (ed8x$4dds@gmail.com) and then sends letters (with no return address) to friends with their code names. Once again the code names are random.

One thing I never knew is that the Government scans EVERY piece of mail..

The guys create DRAFT emails for each person with their code name. Their friends can communicate with them by continuing the DRAFT email and never sending it. An email that is never sent cannot be tracked.

Eventually their own paranoia gets the best of them.

Can you think of ways to use the Net without being tracked?