G'day Aaronrp,

"I knew that you could use :: to make sure that a package name wasn't used as a subroutine, but I didn't really understand what it did."

Take a look at "perlobj: Invoking Class Methods". I think that has the information you're missing.

"Somebody will tell me that I missed some, I'm sure."

You missed some. :-)

"perlop: Quote and Quote-like Operators" has a list. The remainder of that section, and the following two sections, have details.