Useful things I have leaned recently, no. 1

Between svn add foo and svn commit foo you can change your mind by doing svn revert foo (with a possible --depth=infinity) - makes sense I suppose. I hate discovering that the answer was quite easily guessable.

To configure the svn client on Windows, the documentation says that you can edit %APPDATA%\Subversion\config but my edits were ignored, apparently because of the existence of registry key HKEY_CURRENT_USER\Software\Tigris.org\Subversion\Config\miscellany meaning that all of the miscellany section in the config file was ignored. I hate the registry.

In C#, Invoke puts an event on the UI event handling thread and blocks for it to be handled. My callback handlers deadlocked. BeginInvoke passes an event asynchronously, which is almost always what I want. I hate dotnet.

StackOverflow is not bad, but a users mailing list for the relevant software fixed my problem almost immediately, so I posted that back to StackOverflow myself before anyone else had helped. I hate not knowing who to ask.

Edit: added hatred - stupid registry