Nothing sucks worse than getting to the office in the morning and realizing you left the most recent copy of an important file—whether it's your to-do list or a PowerPoint presentation—on your home computer. No matter where you are and what computer you're using, you always want the most updated set of documents and files you've got without having to carry 'em around on a thumb drive. Luckily, several free solutions can automatically sync folders between computers—even over the internet, through office firewalls—no matter what operating system you use. Whether you want work files edited at home to magically appear on your PC at the office, or the family room Mac to have a copy of the latest batch of digital photos downloaded onto the computer in the den, three free applications can help.
