What kind of software do you like having on your computer (be it Windows, Mac, Linux, Android; desktop, laptop, tablet, smartphone)?
I like Libre Office... it's saved my butt many times when MS Office decides to misbehave. I still depend on MS Office because of all the macros I use in my work.
In Win 7, I love Taskbar Tweaker 7+, which decouples taskbar icons so I can put them in any order I want.
In Win 7, I also use AVG Free antivirus. I find it the least intrusive and most effective.
On Android, I like Lookout, which is a good, solid security program.
What do you like and recommend?