List some software that you consider as being essential ???

Here is my list 1 Firefox---the best browser 2 avast--best free antivirus 3 Vlc player---play all kind of 4 Nero--very imp to me 5 Utorrent---best a lightapp for downloading torrent 6 Foxit reader----pdf reader many of us like adobe reader but i don't like it because i some out larger app than foxit and does the same job 7 CCleaner--for removing junk files well these are the basic i think but as a software developer my basic list i much deep

VLC is pretty important to me. Lightweight but can almost play anything. I uses utorrent too, and I love it because it is very lightweight and does the job.