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.
SyncToy is a great free utility for Windows which allows you to sync or backup different directories on your system. SyncToy is a great way to keep to different directories in sync be it your documents directory and is backup on a USB stick or your Digital Camera memory and your Pictures directory or your backup to a Network Drive or NAS.
Just came across and have to say it is such a simple yet a very power user tool for Windows. Disk Digger, as the name implies is a free File Recovery tool for Windows. It can recover deleted files from Hard Drive, Removable media like USB drives and USB sticks, memory cards etc. Disk Digger can recover files from re-formatted hard disks or even on disks with format errors as the advanced mode can scan for files bypassing the Windows Filesystem drivers.