As a data business analyst in large and small companies, I find myself working on very complex systems (people and apps), and a single monitor helps me focus. O

As a data business analyst in large and small companies, I find myself working on very complex systems (people and apps), and a single monitor helps me focus. Occasionally I switch the second monitor on, but usually use it as an expensive document stand. Of course all the marketing/finance/ops/pm people I support love to multitask and hack spreadsheets and email all day. I get the pros and cons for various flavors of developers, but EVERYONE with two monitors is total insanity.