HistoryClip is the best clipboard helper for Windows, it can remember everything that you cut/copied to the clipboard, it allows you to save the clipboard context into a single file, after compressing or encrypting it, then sharing with your friends.
ModifyFileTime is a freeware that allow you to modify file time. It is simple and easy to use. You can use it to modify the time attributes of the file or folder.
BarMaker is a convenient tool that help you create QR Code or Barcode images. You can use it to create QR Code from contacts, bookmark, clipboard and text. After you have created it, you can share the QR Code or Barcode image with you friends.