As a full-time freelance manuscript editor, I do all of my editing on-screen and online, using Microsoft Word Track Changes, so I’m sitting at the computer all day, editing and sending and receiving documents, with comments, by email. I have a PC, a laptop, and, for the past year, a smaller Netbook. I like to travel, so use the laptop or Netbook when I’m away. For the last year, I’ve been taking my Netbook for plane trips, as it’s light and compact for my carry-on, and small enough to fit on the airplane’s flip-down tray, with room for my cordless mouse and a cup of coffee or tea. But I notice when I’ve been using this smaller notebook-type computer for hours that my shoulders, back and arms become tense from hunching over, my fingers ache from the small keyboard, and my eyes get sore from squinting at the small screen. Retail $39.99 When I’m at home, I stay away from my laptop or Netbook and stick with my large-screen monitor, my curved ergonomic keyboard with padding at the fr...