Don't you hate it when you start Windows Explorer and it always starts in the wrong directory?! For me, it opens in the "My ___" directory structure by default, and I never use those directories. It would be much better if it would open up and show me the contents of the "C:\" drive, or perhaps a subdirectory like "C:\Work". Fortunately this can be done, if you know the magic incantation.
I've create a shortcut to start Explorer from the Windows taskbar. To get it to start in the desired subdirectory, I right-click on the shortcut icon, then select "Properties". From there I change the "Target" field. It originally looks like this:
For it to start in a directory named "C:\Work" I change it to look like this:
This is a beautiful thing. It probably only saves a few minutes every day, but it greatly reduces the annoyance factor (!).