File Properties

Sometimes it's helpful to know the properties of a particular file on your computer: eg, how large it is, where is the original file located if it's a shortcut, and so on. The usual way to find out is to right click on the file and then choose Properties from the dialogue box. Here's a simple shortcut: Alt-left click on the file, and it brings up the same dialogue box.
Incidentally, checking the properties of an email in your inbox can reveal some otherwise hard to find information, like addresses that are obscured in the "From" line. The Alt-click tip above doesn't work here, though - for that you have to right click on the file name.