A perennial Cheapskate favorite, LogMeIn Free lets you connect to your PC from any other PC. This comes in impossibly handy when you're working offsite and need to access files, run programs, check your e-mail, and so on. It's like sitting at your PC when you're not actually sitting at your PC.
All you do is download and install the free LogMeIn utility on your primary PC; it runs quietly in the background until needed. When you want to connect to your system from somewhere else, just fire up that PC's browser (Firefox, Internet Explorer, Safari, … Read more