JOHN SCALZI has figured out that Wi-Fi at home is a huge productivity booster:
At the moment, I'm writing this in Athena's room, on the floor the computer propped up on my lap; Athena is behind me on her bed making up a Powerpuff adventure. Three weeks ago I would have to be in my office to type this and Athena would be coming in about every six seconds to ask me something or to ask me to do something or whatever, which means I would actually have a difficult time getting work done when she was around; now she's happy to let me work because I have proximity to her. . . .
Interestingly, this also works with Krissy; she's more content to let me do work if I'm in line of sight. There's a real psychological difference between being in the office all the time, away from the family while I'm doing work, and being in the room, doing work while the family is doing stuff around me.
Being in the room on wireless is more like reading a book, which nobody minds; being in your office is more like work.