This is a quick tip that I only noticed recently. Visual Studio has the ability to save the contents in the Find Results tool window to a file. When the Find Results tool window has focus, select File – Save Find Results from the Visual Studio main menu.
Unfortunately, this is not available for the Find Symbols tool window. My guess as to why this would be is that the Find Symbols tool window contains images as well as text but this is just a guess.
By the way, the Output tool window has the same functionality which also comes in handy from time to time.