[Moo] Thoughts on using Browser object for global variables?

[pradador]

I have a couple of plugins that need a couple of global variables and
I was thinking about using the Browser object to contain them. For
example, in one I need to keep a cache of the stylesheet and script
elements attached to the page so I was thinking about just using
Browser.Stylesheets and Browser.Scripts to store them. Should we keep
the Browser object free in case of future compatibility issues and
instead create an object like "Session" or would this use be
acceptable?