3.1 TFM Files

<..unix tfm fonts..>
 tpath/tex/texmf/fonts/tfm/!
 -_-_-

<..win32 tfm fonts..>
 tc:\path\tfm!
 -_-_-

<..my tfm fonts..>
 t/usr/local/teTeX/share/texmf/fonts/tfm/!
 t/var/tmp/texfonts/tfm/!
  t/usr/local/teTeX/texmf/fonts/vf/!
 -_-_-

The t/var/tmp/texfonts/tfm/! are for fonts created on the fly during the compilation by tex.