Here are some of the open-source and free software that I use 1) Libre Office - To take care of all your Microsoft Office suite s s 2) Mozilla Thunderbird - You can use it to replace Microsoft Outlook. It's a email newsgroup newsfeed and chat client which can help you manage multiple mailgroups and newsgroups with the added functinality of keeping a number of identities in a single email s s 3) Daum Pot Player - It's a video player with a much better looking interface than VLC and it can easily take care of all s of video and audio file formats. There's also a number of keyboard shortcuts as an added 4) Music Bee - An open source music player that has an interface that resembles itunes and has great playlist 5) Mini Lyrics - A free software which displays lyrics of the song that you are currently playing which works well with VLC and Music Bee. The lyrics can be saved in your hard disk I will add the download s to all these software later and would keep on adding more. And please try to donate to the developers of these software if you love their work. This will help them in developing more such awesome softwares. Cheers! Editn6) Notepad++ It is a free source editor for all your coding needs which supports various programming languages including C C++ Java XML HTML PHP etc. It provides a clean interface with great added 7) Audacity It is a free and very easy to use audio editor and recorder. You can use it to record live audio or convert tapes and records to a digital format or create mix