Somewhat of a personal tangent, but I exclusively use 1 screen, and rarely split windows or have more than 1 application open when working. When I need to bounce between code/browser, documentation/code, or email/HN, I use the alt/command-tab functionality.

I find it slower having to switch between viewing different screens or moving my head, yet I'm the only one in my friend group who does this -- everyone else seems to prefer dual monitors.

I'm curious if HN people find that dual monitors feel like more of a distraction, and if it's at all related to multitasking.