Where are all my apps?!

One of the things I hate about GNU/Linux is the confusing directory structure. There isn't one specific loaction for your apps as in Mac OS X, and to some extent in Windows, everything is all over the place.

You'll find some apps, or at least that what I found in my setup, in:

/opt
/usr/bin
/usr/lib
/urs/sbin
/usr/local/bin
/usr/local/lib
/usr/local/share

and in some times they are mixed with system programs and libraries! It is a mess! Finding stuff is pretty confusing already with all the directories and their subdirectories.

This is a relic from Unix, and should be abandoned, the directory structure should be cleaned. All user apps should be in one place such as /home/username/bin for apps or /usr/bin and all system apps should in /sys/bin, but this makes too much sense and thus will never happen!