A couple of years ago, any suggestion that I would have two computer monitors would have had me in scornful denial. One was bad enough! Since I work so much online, I often felt frustrated with "being stuck staring at this dumb screen for hours!" So why in Heaven's name would I want to compound the misery?
Then my husband started taking online CAD classes through the local technical college. (For you ladies who are wondering why any man needs classes in how to be a cad, that stands for Computer Aided Design.) He appropriated an extra monitor and hooked it to his lap top at the other end of our office. He was able to have his CAD drawings open at the same time that he was looking at the instructions from his teacher. Very convenient.
I started observing my own work habits more closely and taking note of how many times I needed to close out one window to see another. Very often I was toggling between email windows and my internet browser window. When editing and posting for online publication I would have to flip back and forth numerous times between a document window and the online editor function. Every click takes a toll on the hands and I already had to wear braces on them at night from time to time, even though I try to take frequent breaks and stretch often.
It became clear to me that an extra monitor would eliminate many dozens, if not hundreds, of clicks a day – saving both time and wear and tear on my hands.
I have now had two monitors for several months and I wouldn't go back for anything. A program called UltraMon extends the Windows taskbar across both monitors and places the task tabs for open programs on the monitor where each is displayed.
Try analyzing your own work habits and environment and see if adding a monitor would make things easier and faster for you, too.