Annotate the MSDN Wiki
For a long time, my favorite place to put up code snippets that I could get back to later has been
pinvoke.net (like
GetTempFileName). However, that was only good for managed/native interop, whereas
the MSDN Wiki is for anything in the docs. I don't know what their commitment is to keeping content over time or between versions, but I've got my fingers crossed. Enjoy!