Experience has shown
problems on some systems when spaces or something other than a underline
or hyphen are used for spacing in filenames.
It is also a good idea
to use only lowercase for all text in filenames, except in the suffix
(it can be either, but some systems insert in the filename as uppercase).
Filenames should not start with numbers.
Really long names work
fine.
Filenames will probably
end in .htm or .html for text and .jpg, .jpeg, .bmp, .png, or gif
for graphics.
