Some ones that I find really useful: Process Explorer: Free and awesome task manager MobaXterm: Tabbed SSH Client. Need I say more. Has a free version flawlesswidescreen: For playing most old games at 1080p
Dropbox: FYI put your "documents" folder on dropbox to sync documents, saved games and settings between pc's. VLC: It plays anything and is portable so it works on the work's pc as well.