Seriously? I think I've been most productive pre-internet days when stuck on a trans-atlantic flight with a java (shudder, talk about PTSD) reference manual and laptop that could barely last 2 hours on battery, with emphasis on the measure-twice, cut once mentality.

It's painful to watch junior coders copy-n-paste from SO or W3schools (including code samples clearly labelled not-for-production) with little effort to understanding what they are doing.