Total Spy

Total Spy is an ingenious program that lets you keep tabs on other people while they use your computer when you are not using it. Irrespective of why you would want to keep track of all that other users do on your computer, consider using Total Spy for it has all you need. The program enables you to use various tools and methods to keep a check on all the activity done using your PC. For example, you can use the program’s Keystroke Loggers, the Clipboard Scan, Web Navigation monitoring, and IM Chat monitoring.
You can also use Total Spy to take screenshots of what exactly other users have been up to, for example the program automatically takes screenshots of the social network page of other users. You can also put a timer on the screenshot option and decide how often you want the pictures to be taken.
A limitation of Total Spy is that the application persistently prompts you to get rid of all other key logging or other software that directly conflict with the program. This can be a bit annoying and you may have to get rid of important software (which may include some antivirus programs).
Other than this, the software is effective and has all the tools you need to keep an eye on what goes on on your PC when you are not home.