I've long used the Mac's ctrl-scroll shortcut for zooming in on the display. Ages ago, when I was working in the same room as the design staff for a company I w

I've long used the Mac's ctrl-scroll shortcut for zooming in on the display. Ages ago, when I was working in the same room as the design staff for a company I worked at, they saw me do that and were quick to activate it on their iMacs as it's really handy for checking pixel-level rendering on web interfaces.