"The thing I don't understand, is if you don't keep any sensitive information why are you concerned?"
he is lieng and has some sensitive stuff (Captain Obvious SRIKES again).
On another note, i do not suggest having some safe guard programs.
Most of them are easy to decode with a graphics card, and the only thing they do it make it harder for you to access those files, especially if you forget the password.
The best approach is to use a combined system (for example, rar an archive, get it into some random folder with 20000000000000 almost empty files, make it not visible, stuff like that ).