I’m one of those guys that gave up the desktop computer in favor of a MacBook Pro and I couldn’t be happier. Still, occasionally, as in any longer term relationship, I do have complaints.
One of biggest was the screening dimming while showing clients work. It irks me to have to flick the trackpad every 10 minutes just to keep screen bright. Sure, I could go into System Preferences > Energy Saver and turn off this function but then I always forgot to turn it back on (I’d often realize this after coming home from a gig to find my computer screen had been burning for over 24 hours straight).
Is there no simple solution for this tiny dilemma? Actually, there is.

How does Caffeine work? This little app puts an icon on the right side of your menu bar. You just have to click it once and it disables the screen dimming/saver/et al. Click it again and it re-enables your original Energy Saver settings.
What’s even sweeter is that they just added a function where you can set a time limit for the app. That way you won’t accidentally activate this app and leave your screen burning overnight.
Practical and efficient, this app rocks. Every media worker with an Apple notebook should install this immediately.