[qwerta]

I had 4x22" until recently, second screen adds 50% productivity, third 25% and forth about 12.5". Upgrade to 3x32" is underway, so I can not provide data for those. I will probably keep old 22"s around for some statistics, visualisations etc.

I use screens in portrait mode, so it fits more code.

I usually keep left screen for navigation (file managers, terminals), center screen for IDE and right for documentation, notes and communication. I also use virtual desktops to switch window layout for various tasks. For example I consume twitter and rss feeds in separate configuration.

I am not saying everyone would benefit from this setup. I analyze large heap dumps and do lot of concurrent debugging. But quiet office, decent screen and chair should be a starter for any self respecting programmer.