I'm not sure if hiding tiddlers does keep any secret. Most operating
systems have built in search functions with there file browsers. So if
you do a
simple search everyone will find everything within a html file. So imo
hiding tiddlers inside TW is just waste of time.
* which operating system do you use?
* If you just want an unecrypted TW, which should be private, just put
it on a USB stick and take the stick with you.
* If you do have a unix like system, you could easily encrypt your
home directory, which will keep your /home stuff away from everyone
else.
* For a windows like system you can use eg. TrueCrypt[1] or other open
source SW that can provide transparent _multi platform_ encryption.
rohos [2] may be an option too
have fun!
mario
[1]
http://www.truecrypt.org/
[2]
http://www.rohos.com/products/rohos-mini-drive/