[photon_off]

Little things certainly matter, but only a little. In my experience, the most limiting factor in productivity is motivation and being healthy. These things are orders of magnitude more beneficial, and rarely effected by, my machine's speed. For the work I do (web development), the bottlenecks are very rarely the machine itself. At worst, I need to restart Firefox once a day, which make take up to a minute as I eat a banana.