ALT+F3! That works a lot better on the original Model F keyboards where the function keys were in two columns on the left side of the keyboard. I would love to have a modern version with 12 function keys on the left ...
I'd even settle for a 12 key keypad on the left as well - that might be more doable. Looks like I might have to build this myself from scratch ...
If running under the Visual Studio debugger, you can also press F12 with the debuggee in focus to break into the process.