Encryption - Tip of the Iceberg - What More Do You Need!

AxCrypt
This is a simple, free, way to encrypt your data files. There may be better encryption software available but this is a good, simple, way to keep 99.9999% of the people out of your files. It also installs itself into your context menu so any time you right click on a file you have the option of encrypting it. You can access your encrypted files with a password or a 'master pass key' that you save onto a flash drive.

I really like this solution because it's easy, fast, and pretty darn secure. You can also highlight an entire folder of files and it will encrypt every file in that folder under one password. I think everyone should keep this on their system just in case you ever want to lock something away.

http://axcrypt.sourceforge.net/