General library question

[eluser]Pascal Kriete[/eluser]
Ok, for most of the stuff the answer is - do it the way YOU want to do it. Helpers, by definition, are groups of functions - but I often use them to create one word accessor methods for my libraries (i.e. check_Login() instead of $this->auth->check_Login()).

CI already provides handling for singletons. All of the CI base libraries are handled as singletons, called with the load_class function, found in system/codeigniter/Common.php . It will look through your application/libraries folder, so that would be a good place for it.