Using a single monitor for work is like being in the middle seat on an airliner. There just isn’t enough space for activities. When you want to get more done, optimize your workspace by getting multiple monitors.
Obviously talking about standard sized monitors here. We can discuss extra wide monitors in another post.
A Single Monitor Setup
There are few reasons why you would only want one monitor, and those are usually temporary. If you are removing all distractions to write, code, plan, or review, then closing all other programs and windows might be a good idea.
Usually however, most tasks require multiple windows. You might be using a text editor, a code editor, a messaging tool, a browser, some reference material, a video call, a spreadsheet, a file explorer or any number of other things at once.
With a single monitor you lose time and focus, you drop out of flow as you switch back forth between browser tabs and the other various programs you are working with. You lose track of a window or close one accidentally.
A Dual Monitor Setup
Having two monitors is the minimum I would suggest. This way you are able to keep your primary creative or review work in front of you and have plenty of space to keep reference material and communication tools available at a glance.
Research has show an increase in productivity and a perceived decreasing in difficulty of performing work. This increased efficiency may help you feel more satisfied with your work as well.
Unless you are doing some location arbitrage or using your remote job to scratch a travel itch, two monitors is the way to go.
Multiple Monitors: Going Past 2
After your second monitor you start getting into diminishing returns. You want to keep them in your natural field of view without tilting your head and having to turn too much. This limits you to about three max for regular use.
I have seen some people who day trade use up to six ( two rows of three ). If you plan on going this crazy you need to invest in some quality monitor arms and make sure you have enough outlets available for all your power cords. Additionally you will need a video card in your computer that supports as many monitors as you want.
This is probably more expense than it is worth. Make sure you really would benefit from more monitors before going past two.