What code snippet tool are you using?

I think one of the most popular code snippet tools is Code Library for .NET. I don't know how it's with the current version, but all previous versions I tested were very unstable. But it really has all the features I need for a code snippet tool.

I found some other code snippet tools named CodeKeeper.NET and SnippetBox.NET. It's surprising that the two sites are very similar, just search/replace of some text :-). Unfortunately it's not for free.

I wonder what you guys use as code snippet tool...