Do you keep an archive of "useful" R code? and if so - how?

Hello all,

When using R for some time, one comes across more and more useful  
functions.
But naturally we can't remember all of them, so I imagine some of  
you save
these snippets of code.
My question to you is how do you manage that code?
Do you use special software, or archiving system?

Any advice is welcomed.

Tal

One word:  Subversion (http://subversion.tigris.org/)

A version control system is a critical part of any code management  
process.

If you or other users may not be comfortable at the command line using  
it, there are a plethora of GUI based clients for Subversion available  
depending upon the operating systems you are using.

HTH,

Marc Schwartz