While network planning and design isn't usually part of my job, I do sometimes need to put together a quick sketch of a client's systems to help me oragnize a plan of attack.

Network Notepad is exactly what I was looking for - a small, free app that lets me lay out network devices, servers, printers, and workstations quickly and easily. It's a great tool for documenting sites in case another tech has to attend to a call in my absence. Once you've set IP addresses, you're able to use the F1-F6 keys as hotkeys to ping, surf, or telnet to a device.

Don't be fooled by the Notepad in the name, though. This app is full-featured enough to tackle complicated networks. Be sure to download the Cisco-created object libraries and hub/switch pack, as they provide several icons that aren't included in the default set.

There's even a flow chart icon pack which turns Notepad into a kind of poor man's Visio (if you're looking for a Visio clone, try the open source Dia). You can't argue with the price, and the feature set is impressive for such a small download.