Tools the techs use

Everything here can be used for free.

CCleaner.com
It'll remove most old temporary files, cache, logs and various arterial buildup that occurs over time.  Your machine will feel like new.  Just be sure to uncheck any toolbar it asks to install.

Digsby.com

Universal instant messaging, e-mail notifications and social networking in one application.  Be sure to uncheck the advertisements and Research Module upon installation.

Dropbox.com
Dropbox is a client that syncs files online and across your devices.  Put files into your Dropbox on one computer, and they'll be almost instantly available on any of your other computers that you've installed Dropbox.  A copy of your files are stored on their secure servers enabling access from any web browser as well.

LiberKey.com
Fully functional, portable applications that fit on a flash drive or even in Dropbox.

A free, open source productivity suite similar to Microsoft Office that has been developed by Sun, Oracle and Google.

Malwarebytes.org
Do you have pop-ups or being redirected to web sites trying to sell you something?  You may be the victim of spyware, trojans, grayware of something else of dastardly nature.  Run a quick scan and you'll be minty fresh.  If this doesn't fix your problems, seek professional assistance.

Skype.com
Free computer to computer voice/text/video conferencing.  The sound quality is amazing.  It also supports screen sharing.