I've decided to start a feature series on a couple of things I use, and think could be useful to some of my readers. 

Caffeine App is one of those apps.

In hundreds of scenarios I have been in a situation where I can't have my computer going into sleep mode. It could be a stage presentation, important meetings with board members or employees or a wedding event.

This is where Caffeine App comes in handy. 

While turned on, caffeine prevents your Mac from going to sleep and displaying the screen saver.