Finding the Combined Size of Multiple Documents

From Apple's Tip of the Week

Let’s say you have several files on your desktop, and before you copy them all onto your jump drive, you want to find out their combined size. Here’s how it’s done: Select all the files for which you want the combined size, then press Command-Option-I, which brings up the Multiple Item Info dialog, complete with a list of how many files are selected and their combined size.

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