App: CCleaner

An absolutely fantastic free program. Offers secure deletion options for deleting your secure data, or what you don't want your room mate to see. The options are Normal (1 pass), Secure Simple Overwrite (1 pass), DOD 5220.22-M (3 passes), NSA (7 passes), and Gutmann (35 passes). A normal deletion replaces the ones with zeros, and just about any data recovery tool will be able to recover your deleted porn. How ever, if you go over the data and delete it 35 times, then its pretty much gone for ever. NSA Secure Deletion is the Military Standard for file deletion, and thats only 7 passes, 5 times that is much more secure.

Deletes:

+Internet Explorer
-Temp Files
-Cookies
-History
-Recently Typed URLs
-Index.dat Files
-Last Download Location
-Auto-complete Form History

+Windows Explorer
-Recent Documents
-Run (Commands typed)
-Search Autocomplete
-Other Explorer MRUs

+System
-Empty Recycle Bin
-Temp Files
-Clipboard
-Memory Dumps
-CHKDSK File Fragments
-Windows Log Files
-Start Menu Shortcuts

+Advanced
-Old Prefetch Data
-Menu Order Cache
-Tray Notification Cache
-Window Size/Location Cache
-User Assist History
-IIS Log Files
-Hotfix Uninstallers
-Custom Files and Folders

+Firefox/Mozilla
-Cookies
-Download History
-Internet Cache
-Internet History
-Saves Form Information

+Applications
-Adobe Reader 8.0
-MS Office Manager
-Office 2003
-Office 2007
-Office XP

+Internet
-Kazaa (Search history)
-Sun Java
-Yahoo Toolbar

+Multimedia
-Adobe Flash Player
-Quicktime Player
-Quicktime Player Cache
-Windows Media Player

+Utilities
-Grisoft AVG 7.0
-SpyBot Search and Destroy
-VNCViewer 3
-VNCViewer 4
-WinRAR
-WinZip

+Windows
-MS Management Console
-MS Paint
-MS Wordpad
-RegEdit

There is also a Registry Cleaner tool, an uninstall tool, and a startup manager.