Recently, I mentioned in passing how I had moved from a one-computer setup to a two-computer setup: keeping one machine at work and one at home. I further differentiated the machines by only having work-related items on the work machine (so Mail.app only had my work email account on it, and so forth). My work-only machine was my MacBook Air, while the computer at home, a Retina MacBook Pro, had both work and personal stuff on it.
This seemed like an ideal split: I never sent email from the wrong account, I felt more efficient at work, and I only had to carry my iPad from home to work and back. But it was only a few weeks before the drawbacks set in and I reverted to a single machine that I always bring with me.
Before I divided my...