I have to admit, I thought I might not get to Option key Tip Number 10... but here it is!
I'll bet you've chosen "About This Mac" from the Apple menu-- it shows you a box something like this.
Processor, Memory, Startup Disk-- all interesting stuff to know.
The "More Info..." button launches the System Profiler application, an important trouble-shooting tool. But, if you hold the Option key, the first item in the Apple menu changes from "About This Mac" to "System Profiler," saving you a click. It doesn't sound like much but they all add up.
And that's 10.
