free software i love:
iTunes - free [windows, mac] tried and true music program (don't hate me)
CCleaner - free (w/ donate/corporate versions) [Windows] amazing cleaning tool that will speed up your PC significantly.
X-Link - free [windows, linux, mac, android] crazy fast WiFi file transfer java program. will render flash drives obsolete.
Android link (includes download link to desktop version)
Scratchpad - free [chrome os, plus windows linux & mac support if installed via chrome] simple but fast, google-syncing note taking Chrome App
Download linkSpeccy - free (w/ donate/corporate versions) [windows] everything you ever wanted to know about your PC, all in one great little app
Picasa - free [windows, mac, depreciated linux version] best photo viewer i know, has some great photo editing tools as well.
Mari0 - free [windows, mac, linux] hilarious but maddening mashup game
download linksLibreOffice - free [windows, mac, linux] best free office suite
there's loads more, but that's a good start =P
