When should I autoload a library?

[eluser]LinkFox[/eluser]
If you're using it all over your application then autoload it, I.E Session, however things like form_validation would only really be used on pages with forms so should be loaded when you need it.

I'd say only autoload if 60-70% of your controllers require the library/helper etc, but its a personal preference and its best to learn by tweaking really.

Hope this helps

Regards

David