Great idea! And if for some reason you feel like your filenames should stay as they are (without a comma), you could just add symlinks to all executable files in your bin directory:

  $ cd ~/bin
  $ for x in $(find . -type f -perm /a=x -exec basename {} \;) ; do echo $x ; done
  temps

  $ for x in $(find . -type f -perm /a=x -exec basename {} \;) ; do ln -s $x ,$x ; done

  $ ls -l
  total 4
  lrwxrwxrwx 1 tanel tanel   5 Jun 23 16:38 ,temps -> temps
  -rwxr--r-- 1 tanel tanel 251 May 30 23:26 temps