Windows Grep is a free tool to search for specific text patterns within a file or a set of files on your system. It also allows you to Search and Replace for text patterns within the file(s). For those from the land of *NIX, this needs no introduction as you can say it is a Windows equivalent of GREP in *NIXes.
WinToFlash is a free tool to make a bootable USB device from your Windows installation CDs or DVDs. WinToFlash is very simple and easy to use and no installation is required that means no real technical knowledge is necessary. WinToFlash works well with LiveCDs as well.
When you run XMing on your Windows PC with multiple monitors, you may have problems with displaying the XWindow on both the screens. In other words, you may find a XWindow displaying in one monitor while being just blank on the 2nd monitor. This is a bit annoying when you need to move around the XWindow on multiple monitors.
Just when I ran into a problem with my VMWare Server, I found this cool new online tool, easyVMX to create VMWare Virtual Machines which can be run using vmplayer.
LastPass is a unique Password manager which is more specific to online websites where logons are required or even fill forms. As the name implies, there is only master password that you have to remember and the whole lot of your online passwords goes into the online database accessible securely from anywhere in the world or from any PC.